David Wilson Et Ano, V. Clayton Erickson Et Ano ( 2022 )


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  •        IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON
    DAVID L. WILSON and PEGGY A.                        No. 82259-4-I
    WILSON, husband and wife, and the
    marital community composed thereof,                 DIVISION ONE
    Respondents,
    v.                                 UNPUBLISHED OPINION
    CLAYTON ERICKSON and KAMI
    ERICKSON, husband and wife, and the
    marital community composed thereof,
    Appellants.
    CHUN, J. — In 2019, Kami and Clayton Erickson bought property that
    shares its western boundary with Peggy and David Wilson’s property. 1 Two old-
    growth evergreen trees stand on what the Wilsons claim to be the boundary line
    between the properties. The Ericksons obtained a survey of their property.
    According to the survey, one of the trees is mostly on their property and the other
    is entirely on their property. Clayton informed Peggy that he intended to remove
    the trees. Peggy objected, asserting that the boundary line runs through both
    trees and that both sets of property owners owned the trees. The Wilsons
    petitioned to quiet title, seeking a declaratory judgment that the boundary line
    runs through the trees, and an injunction prohibiting the Ericksons from “cutting
    down or destroying” the trees. After a bench trial, the trial court determined that
    the doctrine of mutual recognition and acquiescence applied and ruled in the
    1
    For clarity, we refer to the parties by their first names. We intend no disrespect.
    Citations and pin cites are based on the Westlaw online version of the cited material.
    No. 82259-4-I/2
    Wilsons’ favor. The court also awarded the Wilsons attorney fees and costs. For
    the reasons discussed below, we affirm.
    I. BACKGROUND
    A. Facts
    The Wilsons have lived on their property in Everett, Washington since
    1999. In October 2019, the Ericksons bought the adjacent property. The
    boundary line between the two properties runs north and south, with the Wilson
    property to the west and the Erickson property to the east. Two old-growth
    evergreen trees stand on what the Wilsons claim to be the boundary line
    between the properties. The Wilson house’s foundation runs parallel to the
    boundary line. In the Wilsons’ front yard, south of the house, is a cedar fence
    that runs north and south, which is roughly aligned with the house. And in their
    backyard, north of the house, is a chain link fence that runs north and south,
    which lies about two feet east of the house’s foundation and runs to the northern
    end of the property. At the time of purchase, the Erickson property had a house,
    a garage, and a shed. After the purchase, the Ericksons hired a company to
    survey their lot and ascertain the boundary line.
    Several months after the Ericksons bought their property, Clayton spoke
    to Peggy for the first time. He expressed his intent to remove the two old-growth
    evergreen trees. He asserted he had a legal right to do so because, based on
    the survey, most of the northern tree is on the Erickson property, and the entire
    southern tree is on the Erickson property. Peggy says that during this
    conversation, Clayton said he planned to take down the Wilsons’ chain link
    2
    No. 82259-4-I/3
    fence, which wraps around the trunk of the northern tree on the western side of
    the trunk. Clayton says he told her he would replace the fence. Peggy told
    Clayton that the trees mark the property line and objected to their removal.
    B. Procedural History
    The Wilsons commenced suit, seeking to enjoin the Ericksons from
    removing the trees. They also requested that the court quiet title to the disputed
    strip of property and enter a judgment declaring that the boundary line runs
    through the trees. The Ericksons counterclaimed for partition, a declaratory
    judgment that the trees are “dangerous,” and an injunction prohibiting the
    Wilsons from interfering with the trees’ removal. They later dropped the
    dangerous trees claim.
    At trial, Peggy testified, “It was always understood that . . . the trees were
    property line markers.” And when asked who had that understanding, she
    responded, “All the owners that were adjacent to the property. This is the first
    time it’s come into question.” She said that she spoke with Dorothy Caldwell,
    one of the prior owners of the Erickson property, about how the “tree line was the
    property line.” Peggy said she and David and prior owners of the Erickson
    property trimmed their respective sides of the trees without asking for the others’
    permission and without dispute. She explained that when she and David erected
    the chain link fence, they purposely placed it about three feet inside the boundary
    line rather than on it so that they would have access to both sides of the fence for
    repairs and cutting grass without having to go on the adjacent property. Peggy
    also expressed concern that based on the Ericksons’ survey, their house no
    3
    No. 82259-4-I/4
    longer complied with the city of Everett’s five-foot setback requirement, which
    they understood applied to their house. She explained to the court that a series
    of trial exhibits depicted her and David holding 10-foot sticks and ropes marked
    in the middle at five feet to show that the five-foot point between their house and
    the garage on the Erickson property bisects the trees. She also said that the
    corner of a fence on the Crosby property, known as “Crosby corner,” represents
    the northeast boundary point for their property. The court found Peggy credible.
    David testified that the boundary line runs through the trees and lies east
    of their cedar fence. He said that the trees and Crosby corner act as the markers
    for the boundary line. And he said that the Ericksons’ survey also recognizes
    Crosby corner as the northeast boundary of the Wilson property. David said that
    they placed the chain link fence three feet west of the boundary line so they
    could maintain both sides of the fence without encroaching on the neighbors. He
    said that over the 20 years he and Peggy lived on their property, he did not know
    of any dispute involving the boundary line. David also explained that when
    Caldwell owned the Erickson property, the shed on that property extended about
    four feet closer to the boundary line, and that before she sold the property, she
    had neighbor Jed Whitley shorten the shed to be in alignment with the garage,
    which sat about 10 feet from the Wilsons’ house. This created an approximately
    10-foot-wide corridor between structures on the two properties. The court found
    David credible.
    Jon Iseman, who previously owned the Wilson property after he bought it
    from his parents in 1996, also testified. He said he understood that, from the
    4
    No. 82259-4-I/5
    time his parents bought the property in 1977, the boundary line ran through the
    trees and the property owners on each side of the boundary jointly owned the
    trees. He also testified that years ago, when his father wanted to cut down the
    trees because they obstructed the view, Caldwell said that he could not
    unilaterally do so because the boundary line ran through them. From 1977
    through 1999, Iseman never heard his father or any adjoining property owner
    claim that the trees were not on the boundary line, nor did he see or hear any
    adjoining property owner claim sole possession of the trees. The trial court found
    Iseman’s testimony credible.
    Dan Bovey, a broker involved in the sale of the Wilson property to
    Iseman’s parents in 1977, testified that he had over 50 years of experience in
    real estate and had been involved in about 26 transactions in that neighborhood
    alone. He testified that the boundary line was east of the Wilsons’ chain link
    fence and cedar fence. He noted that the chain link fence did not line up with
    Crosby corner, the northeast boundary of the Wilson property. Bovey also noted
    that boundary line irregularities were not uncommon in the area. He testified that
    while the current setback ordinance requires property owners build structures five
    feet away from boundary lines, before the 1980s, the setback requirement was
    seven and a half feet. During his testimony, Bovey commented, “Well, the trees
    aren’t what designate the boundary line. The trees might be on the boundary line
    or just inside the boundary line.” He did not explain whether “inside the boundary
    line” meant on the Wilsons’ or the Ericksons’ side of the boundary. The court
    found Bovey credible.
    5
    No. 82259-4-I/6
    Brent Eble, the land surveyor the Ericksons hired, testified about the
    results of his survey. He said that the Wilsons’ chain link fence runs roughly
    along the boundary line and that the Wilsons’ house sits two feet and seven
    inches from that line. He also said the chain link fence ends about two feet west
    of Crosby corner, and thus two feet west of the surveyed boundary line. Eble
    testified that the Wilsons’ house was eight and a half feet from the Ericksons’
    garage. He said that during the survey, his crew did not talk to the Wilsons or
    any other neighbors or predecessors in title about the location of the boundary
    line, or about any possible occupation or possession. He acknowledged that,
    despite the existence of a written survey, it is ultimately for the courts to decide
    and declare legal boundaries. Eble said that he does not rely on setback
    ordinances to determine boundary lines because no guarantee exists that the
    property owners follow such ordinances and the requirements can change over
    time. The court found him not credible.
    The Ericksons also testified. Clayton testified that the survey showed that
    the southern tree was entirely on his property and that the northern tree was
    mostly on his property. He said that the Wilsons’ house was nine and a quarter
    feet from the Ericksons’ garage. Clayton said that he did not ask anybody where
    the boundary line was, or who owned the trees before he bought the property; he
    assumed the Wilsons’ fence was on or near the boundary line. For the most
    part, Kami denied knowledge of or involvement in the matter. The court found
    both Clayton and Kami not credible; it noted that Clayton gave different answers
    6
    No. 82259-4-I/7
    about how much of the northern tree he owned and found Kami’s testimony
    generally “evasive and combative.”
    Jed Whitley, a neighbor who lived on the eastern side of the Erickson
    property from 1966 to 2017, testified. He said that he recalled the boundary line
    being along an old fence, which no longer exists, and along a concrete “wall,”
    which sits about five feet from the garage and that “the trees and the hedges and
    everything kind of lined up that way.” Whitley said no one ever discussed the
    boundary line with him. But he also stated that before the Ericksons, there was
    never any dispute about the boundary line, and everyone got along. He denied
    being the one to shorten the shed and said it happened after the sale of the
    property to Su Chang, the person who owned the property before the Ericksons.
    The court found Whitley not credible.
    Several other witnesses testified, including: arborists; an architect; and
    Daryl Johnson, who lived at the Wilson property in 1957 when his father, Lee
    Johnson, moved their house closer to the boundary line to where it now sits.
    Johnson testified that no one told him the location of the boundary line and he did
    not recall where it was. The court also conducted a site visit.
    After trial, the trial court concluded the doctrine of mutual recognition and
    acquiescence applied and declared the boundary line starts at the south end of
    the property and lies five feet east from, and parallel to, the Wilsons’ house, and
    runs north through the two trees and ends at Crosby corner. The court
    permanently enjoined the Ericksons and their successors from “cutting down or
    destroying” the trees. The court declared that each set of property owners owns
    7
    No. 82259-4-I/8
    fifty percent of the trees as tenants in common. And the court awarded the
    Wilsons attorney fees and costs. The Ericksons appeal.
    II. ANALYSIS
    A. Preliminary Issues
    The Wilsons make the following preliminary arguments: (1) the Ericksons
    violated RAP 10.3(g) and 10.4(c), (2) the assignment of error challenging
    credibility determinations is unreviewable, (3) the assignment of error challenging
    the court’s findings of fact is unreviewable as it is unsupported by citation to
    authority, and (4) the Ericksons failed to preserve their challenges below. We
    reject these claims and address the merits.
    1. RAP violations
    The Ericksons did violate RAP 10.3(g) and 10.4(c). RAP 10.3(g) requires
    an appellant to make a separate assignment of error “for each finding of fact a
    party contends was improperly made.” And RAP 10.4(c) provides, “If a party
    presents an issue which requires study of a . . . finding of fact, . . . the party
    should type the material portions of the text out verbatim or include them by copy
    in the text or in an appendix to the brief.” The Ericksons placed all their
    challenged findings in one assignment of error and did not include the text of the
    findings verbatim or in an appendix to their opening brief. They did include the
    court’s findings in an appendix to their reply brief.
    Though the Ericksons violated these RAPs, we conclude that the
    violations do not preclude our review. RAP 1.2(a) instructs appellate courts to
    “liberally” interpret the rules to “facilitate the decision of cases on the merits.”
    8
    No. 82259-4-I/9
    And when, as here, “‘the nature of the appeal is clear and the relevant issues are
    argued in the body of the brief . . . , there is no compelling reason for the
    appellate court not to exercise its discretion to consider the merits of the case or
    issue.’” State v. Kinneman, 
    120 Wn. App. 327
    , 342, 
    84 P.3d 882
     (2003)
    (quoting State v. Olson, 
    126 Wn.2d 315
    , 323, 
    893 P.2d 629
     (1995)).
    2. Credibility determinations
    The Wilsons say the Ericksons improperly challenge the trial court’s
    credibility determinations. See Russell v. Dep’t of Human Rights, 
    70 Wn. App. 408
    , 421, 
    854 P.2d 1087
     (1993) (“Credibility determinations are for the trier of
    fact, not the appellate court, and they will not be reversed on appeal.”). The
    Ericksons respond that they do not challenge the trial court’s credibility
    determinations. Instead, they say their argument is, even assuming certain
    witnesses were credible, their testimony does not meet the required elements of
    mutual recognition and acquiescence. They correctly characterize their
    argument. Thus, no such improper challenge precludes our review.
    3. Citation to authority
    The Wilsons contend that the Ericksons failed to support their assignment
    of error challenging the court’s findings with citation to authority and such failure
    precludes this court’s review. The Ericksons do not respond. We reject this
    argument as the Wilsons fail to cite law supporting the contention that
    assignments of error challenging findings of fact as unsupported by substantial
    evidence—an inherently factual inquiry—must be supported by citation to legal
    authority. Moreover, the Ericksons do cite multiple cases in their briefing.
    9
    No. 82259-4-I/10
    4. Waiver
    The Wilsons say that the Ericksons waived any challenge to the trial
    court’s findings of fact by failing to object to them below or file a motion for
    reconsideration. Thus, they contend, all the findings are verities on appeal. The
    Ericksons respond that they did not need to object below to preserve their
    appeal. We agree with the Ericksons. See State v. Coleman, 6 Wn. App. 2d
    507, 522, 
    431 P.3d 514
     (2018) (“An appellant is not required to object at trial to
    findings of fact in order to preserve a challenge to the sufficiency of the
    evidence.”); see also CR 46 (“Formal exceptions to rulings or orders of the court
    are unnecessary”).
    B. Mutual Recognition and Acquiescence
    The Ericksons say the trial court erred by concluding the doctrine of
    mutual recognition and acquiescence applied here. We disagree.
    We review a trial court’s findings of fact to determine whether substantial
    evidence supports the findings. Merriman v. Cokeley, 
    168 Wn.2d 627
    , 631, 
    230 P.3d 162
     (2010). “Evidence is substantial if it is sufficient to persuade a fair-
    minded, rational person of the declared premise.” 
    Id.
     “A reviewing court may not
    disturb findings of fact supported by substantial evidence even if there is
    conflicting evidence.” 
    Id.
     We then determine whether the findings support the
    conclusions of law. Green v. Hooper, 
    149 Wn. App. 627
    , 641, 
    205 P.3d 134
    (2009). Unchallenged findings are verities on appeal. Merriman, 
    168 Wn.2d at 631
    .
    10
    No. 82259-4-I/11
    Certain doctrines, such as mutual recognition and acquiescence or
    adverse possession, can establish a boundary different from the surveyed line.
    Lamm v. McTighe, 
    72 Wn.2d 587
    , 591, 
    434 P.2d 565
     (1967) (“Boundaries
    between adjoining properties, at odds with the true boundary as revealed by
    subsequent survey, may be established, under appropriate circumstances,
    through” adverse possession and mutual recognition and acquiescence, among
    other doctrines). Here, the Wilsons do not dispute the accuracy of the survey.
    The issue is whether the boundary line has shifted through mutual recognition
    and acquiescence. To prevail on a claim of mutual recognition and
    acquiescence, a party must prove
    (1) that the boundary line between two properties was “certain, well
    defined, and in some fashion physically designated upon the
    ground, e.g., by monuments, roadways, fence lines, etc.”; (2) that the
    adjoining landowners, in the absence of an express boundary line
    agreement, manifested in good faith a mutual recognition of the
    designated boundary line as the true line; and (3) that mutual
    recognition of the boundary line continued for the period of time
    necessary to establish adverse possession[.]
    Merriman, 
    168 Wn.2d at 630
     (quoting Lamm, 
    72 Wn.2d at 593
    ).2 The party
    asserting the application of the doctrine bears the burden to show the elements
    by clear, cogent, and convincing evidence. 
    Id.
     “To meet this standard of proof,
    the evidence must show the ultimate facts to be highly probable.” 
    Id. at 630
    –31.
    1. Certain, well-defined line
    The Ericksons say that no evidence establishes a certain, well-defined line
    physically designated on the ground. We conclude that substantial evidence
    2
    The Ericksons do not contend that the Wilsons failed to prove the doctrine’s
    third element, time. Thus, we need not address the Wilsons’ argument on this issue.
    11
    No. 82259-4-I/12
    supports the challenged findings of fact related to the issue and that the court’s
    findings support its conclusion that a certain, well-defined line exists.
    Substantial evidence supports the challenged findings of fact related to the
    existence of a well-defined line. Finding 15 states that Iseman understood “that
    the common property line between the adjoining lots goes ‘straight through’ the
    two big Evergreen trees.” Iseman’s testimony directly supports this finding.
    Finding 18 states, in part, “An old metal pipe, described as a side line boundary
    marker is still embedded in the foot of the most northerly tree.”3 Bovey’s
    testimony and a photograph of the pipe support this finding. Finding 36 states
    Dave Wilson testified at trial. The court found him to be credible. . . .
    The Wilsons’ house is required to have a 5 foot set back from the
    property line, and he measured the distance between his foundation
    and the beam remnants of the western wall of the garage on
    Erickson’s property, and found the total distance to be 10 feet.
    Sighting north along the reputed boundary line at the 5 foot mark
    between the properties, the line goes straight through the Evergreen
    trees as shown in the exhibits admitted into evidence.
    Bovey’s testimony about the setback, David’s testimony about the boundary line,
    and photographs of the disputed area support this finding.
    The court’s findings of fact about the trees,4 the pipe, Crosby corner,5 and
    the setback corridor support its conclusion that a certain, well-defined line existed
    between the properties.
    3
    While substantial evidence supports this portion of Finding 18, as discussed
    below, such evidence does not similarly support the other portion.
    4
    Unchallenged Finding 2 states, “two ‘old growth’ Evergreen trees located on or
    near” the surveyed line.
    5
    Unchallenged Finding 6 states, “The parties and witnesses all agree that the
    southeast corner of the ‘Crosby’ lot is recognized as being on the property line. The
    Crosby lot . . . is the corner of the Wilson’s north boundary, and the Erickson’s west
    boundary.”
    12
    No. 82259-4-I/13
    The Ericksons say that, though Iseman testified that the boundary line
    runs through the trees, he identified no other monuments designating the line,
    particularly where it begins and ends. Though the trees alone might suffice to
    designate a certain line, evidence presented at trial also identified Crosby corner,
    the old pipe, and the corridor between structures. The Ericksons say that the
    trees are not aligned with each other but present no support for the contention
    that the boundary line must be straight.6
    The Ericksons liken this matter to certain cases in which courts held that
    no certain, well-defined line existed. These cases are distinguishable.
    In Green, 149 Wn. App. at 631, 642–43, the Court of Appeals reversed the
    trial court’s ruling applying the doctrine of mutual recognition and acquiescence,
    holding that insufficient evidence supported a finding that a certain, well-defined
    line existed. The court noted, “[T]here are no monuments, roadways, or fence
    lines along the shorelands boundary claimed by the Greens, except for the
    railroad tie retaining wall extending into the beach area just south of the Hoopers’
    upland lot, and situated entirely within the Hoopers’ property.” Id. at 642. Here,
    monuments designate a line on the ground: there are two trees in a row, a fence
    corner, a pipe, and a corridor between structures.
    6
    The Ericksons also contend that Johnson and Bovey did not testify that the
    property line runs through the trees and that Iseman’s testimony alone cannot support
    the court’s ruling. This argument is better characterized as a reason why mutual
    recognition and acquiescence did not exist. This is because Iseman’s testimony was
    about the understanding that the boundary line ran through the trees, not about whether
    any such line was certain and well-defined. An understanding of the location of a
    boundary line relates more to the mutual recognition of such line. Thus, this opinion
    addresses that argument below.
    13
    No. 82259-4-I/14
    In Merriman, 
    168 Wn.2d at 632,
     our Supreme Court affirmed a trial court’s
    ruling that the doctrine did not apply. The court held that “three widely spaced
    markers in this case, set in a thicket of blackberry bushes, ivy, and weeds, did
    not constitute a clear and well-defined boundary.” 
    Id.
     The court stated, “[W]here
    the disputed area is overgrown, more than isolated markers are required to prove
    a clear and well-defined boundary.” 
    Id. at 631
    . Here, the Ericksons do not
    contend that the disputed area is overgrown, nor does it appear so from the
    record. The markers can be seen such that one can look down the line and
    understand where the boundary lies.7
    2. Manifestation of mutual recognition and acquiescence
    The Ericksons next contend that no evidence showed that the
    acquiescence between property owners was mutual. The Wilsons say that their
    7
    The Ericksons also cite Scott v. Slater, 
    42 Wn.2d 366
    , 
    255 P.2d 377
     (1953), in
    which a party claimed a boundary line ran along the edge of a since-removed street. A
    row of trees ran along the edge of the claimed line. 
    Id. at 367
    . The court reversed the
    trial court’s ruling applying mutual recognition and acquiescence, finding a lack of a
    “mutually select[ed]” line because the parties’ “cultivation of the strip did not terminate at
    a well-defined point and varied in its extent.” 
    Id. at 368
    . But this old case intermingles
    the separate questions of mutuality and a certain, well-defined line, and does not state
    that a row of trees could not suffice as a certain, well-defined line.
    The Ericksons also cite Johnston v. Monahan, 
    2 Wn. App. 452
    , 
    469 P.2d 930
    ,
    review denied, 
    78 Wn.2d 993
     (1970), but there the court applied the doctrine of parol
    agreement not mutual recognition and acquiescence. And they cite Waldorf v. Cole, 
    61 Wn.2d 251
    , 256, 
    377 P.2d 862
     (1963); but there, the court, while noting that a pile of
    rocks did not constitute a certain line, decided the case based on the lack of mutuality.
    The Ericksons also distinguish this case from a series of cases affirming a finding
    of a certain line. See Lilly v. Lynch, 
    88 Wn. App. 306
    , 317, 
    945 P.2d 727
     (1997) (holding
    a certain line existed based on a boat ramp and concrete bulkhead); Mullally v. Parks,
    
    29 Wn.2d 899
    , 
    190 P.2d 107
     (1948) (holding that a split rail fence and barbed wire fence
    was a certain line); Lamm, 
    72 Wn.2d at 593
     (holding that a fence built with the
    understanding that it would designate the boundary line was a certain line). But these
    cases do not purport to announce a minimum for what constitutes a certain and well-
    defined line.
    14
    No. 82259-4-I/15
    actions and the actions of their predecessors combined with the actions of the
    Ericksons’ predecessors show a high probability that the respective property
    owners mutually recognized and acquiesced to the boundary line running
    through the trees. We conclude that—with one exception—substantial evidence
    supports the findings of fact on the issue; and, absent that exception, the court’s
    findings support the court’s conclusion of law on the manifestation of mutual
    recognition and acquiescence of the boundary line.
    Property owners can manifest mutual recognition and acquiescence “‘by
    their acts, occupancy, and improvements with respect to their respective
    properties.’” Lilly v. Lynch, 
    88 Wn. App. 306
    , 316–17, 
    945 P.2d 727
     (1997)
    (quoting Lamm, 
    72 Wn.2d at 593
    .). “Acquiescence in a property line cannot be
    established by the unilateral acts of one party.” Heriot v. Lewis, 
    35 Wn. App. 496
    , 501, 
    668 P.2d 589
     (1983).
    The Ericksons contend that the evidence shows that only the Wilsons and
    their predecessors recognized and acquiesced to the boundary line running
    through the trees. They say that no evidence shows that the recognition and
    acquiescence was mutual—that any of their predecessors agreed the boundary
    ran through the trees. We disagree.
    Peggy said she spoke with Caldwell about how the “tree line was the
    property line.” Peggy also said she and David and the prior owners of the
    Erickson property trimmed their respective sides of the trees without asking for
    permission from the owners of the other property and without dispute. Iseman
    said that when his father wanted to cut down the trees, Caldwell told him he
    15
    No. 82259-4-I/16
    could not unilaterally do so because the boundary line ran through them. And
    David testified that when Caldwell owned the Erickson property, the shed on that
    property extended about four feet closer to the boundary line, and that before she
    sold the property, Caldwell had Whitley shorten the shed to align with the garage,
    which sat about 10 feet from the Wilsons’ house.
    The Ericksons emphasize that Johnson and Bovey did not testify that the
    boundary line runs through the trees and that Iseman’s testimony alone does not
    suffice to support the court’s ruling. But that ignores Peggy and David’s
    testimonies; and they had owned their property for about two decades when this
    dispute arose.
    The Ericksons rely on Muench v. Oxley, 
    90 Wn.2d 637
    , 641–42, 
    584 P.2d 939
     (1978), overruled by Chaplin v. Sanders, 
    100 Wn.2d 853
    , 
    676 P.2d 431
    (1984). There, the court held that there was “no evidence” that a property
    owner’s predecessors recognized a boundary line when the only testimony on
    the matter was a prior tenant who said he was “unaware of any controversy as to
    the boundary location.” 
    Id. at 641
    . In so holding, the court reversed the trial
    court’s application of the doctrine of mutual acquiescence. 
    Id.
     But here, Iseman
    and the Wilsons testified about Caldwell’s actions and statements showing
    mutuality in addition to testifying that no disputes existed before the Ericksons
    arrived.
    Substantial evidence supports nearly all the challenged findings of fact
    relating to mutual recognition and acquiescence. Finding 13 states,
    16
    No. 82259-4-I/17
    For more than 20 years all of the Wilsons’ interactions and
    conversations with all previous owners of [the Ericksons’ property]
    have been consistent with their understanding of the reputed
    boundary line. Wilsons did not have to obtain any permission to trim
    limbs from their side of the trees, and no adjoining property owner
    told them they could not. Wilsons did not tell any owner of the
    adjoining lot that they could not trim their side of the trees. This
    evidence was not rebutted.
    Peggy’s testimony supports this finding.
    Finding 15 states,
    Jon lseman’s understanding is that the common property line
    between the adjoining lots goes “straight through” the two big
    Evergreen trees. He did not see or hear where another neighbor
    unilaterally cut down a tree along the line. He understood that no
    property owner was supposed to cut down any tree remaining on the
    line without the consent and permission of the adjoining property
    owners, and that all adjoining property owners agreed and
    recognized that the trees sit on the property line and that 100%
    approval would be required from both lot owners to cut down the
    trees. Conversations with neighbors confirmed this understanding.
    This evidence was not rebutted.
    Iseman’s testimony supports this finding.
    Finding 18 reads, “Mr. Bovey states that the reputed property line between
    the lots is straight through the two Evergreen trees, and that the trees have the
    reputation of being the boundary line between [the two properties].” While Bovey
    did say the boundary line was further to the east than the surveyed line, he never
    explicitly stated that the boundary line runs straight through the trees. Instead,
    he said, “Well, the trees aren’t what designate the boundary line. The trees
    might be on the boundary line or just inside the boundary line.”
    Finding 23 states,
    The west wall of a light green shed, located between the green
    garage and the house, did not align with the west walls of the garage
    and house, but extended approximately 4 feet towards the Wilson’s
    house foundation in the vicinity of the round concrete core and bricks.
    17
    No. 82259-4-I/18
    In 2014, the extended west wall of the shed was shortened 4 feet
    away from the Wilson property and put into alignment with the west
    walls of the garage and house on [the Ericksons’ property].
    David’s testimony and photographic exhibits support this finding.
    Finding 36 states,
    Dave Wilson testified at trial. The court found him to be credible.
    According to Dave adjoining neighbors have never claimed to be the
    sole owners of the trees. His historic interactions and conversations
    with them are consistent with the trees being part of the common
    boundary line, and that the trees have always had the reputation of
    being on the common boundary line. As such, it is his view that this
    set of facts requires 100% of the property owners be in agreement
    before any tree along the boundary line can be cut down. . . . Over
    the 20 years Wilsons have lived on their property, there have never
    been any disputes involving the trees or the boundary line.
    David’s and Peggy’s testimony support this finding.
    Finally, Finding 38 states,
    In viewing all of the photos of the property, entered as exhibits, it is
    clear that there is a pattern of practice or activity that creates an
    approximate 10-foot wide corridor between the homes. By way of
    inference, this result implies that everyone affected acted in
    recognition of this common, perhaps even community,
    understanding. And we know from testimony that this understanding
    has not been disturbed for over twenty years. The two trees reside
    within this boundary and their historic undisturbed state is also proof
    of this community understanding.
    (Emphasis in original.) Peggy’s testimony and photographic exhibits support this
    finding.
    Apart from the unsupported portion of Finding 18, the trial court’s findings
    of fact support its conclusions that owners and predecessors in interest of the
    two properties mutually recognized and acquiesced to the boundary line running
    18
    No. 82259-4-I/19
    through the trees. The findings about the lack of dispute,8 the common
    understanding of where the line runs, the setback corridor, and joint ownership of
    the trees9 support this conclusion. The unsupported portion of Finding 18—
    about Bovey’s testimony—is not determinative. As a person who never had an
    ownership interest in either property, Bovey’s understanding, or lack thereof, of
    the boundary line is less pertinent to the mutuality inquiry. And he did not specify
    which property he believed the trees were on when he said, “inside the boundary
    line.” Thus, contrary to the Ericksons’ contention otherwise, this comment does
    not support either party’s position.
    3. Setback evidence
    The Ericksons say the Wilsons’ setback evidence does not support the
    court’s mutual recognition and acquiescence findings. They contend that the
    Wilsons relied on setback evidence to argue that because their house would
    violate the setback ordinance as currently located in relation to the surveyed line,
    the boundary line must be further east than the surveyed line and run down the
    middle of the corridor between structures on the two properties. The Ericksons
    8
    Unchallenged Finding 4 states, “The [Ericksons] obtained title to their lot on
    October 1, 2019. Before then, there were no disputes or threats between or among the
    Wilsons and the predecessors in title of both lots.”
    9
    Unchallenged Finding 35 states,
    Dorothy Caldwell, a predecessor in title to Erickson, asked Peggy Wilson
    to please not cut down any trees on the property line as an earlier owner
    had done and left a stump that can still be seen today. Caldwell did not
    command that Wilsons do anything with the trees. Caldwell did not claim
    that the trees were hers. After Caldwell sold the property to Chaing [sic]
    [Chang above], Chaing asked to prune the trees and the Wilsons agreed
    she could do that. . . . There had never been a dispute over [the Wilsons’]
    chain link fence, or the trees, or the reputed boundary line with any of the
    owners until Ericksons raised them in April of 2020.
    19
    No. 82259-4-I/20
    contend that this setback-based argument lacks merit. The Wilsons do not
    respond. We conclude that the setback evidence supported the trial court’s
    ruling.
    Johnson testified that at some point in the 1950s, his father moved the
    Wilsons’ house closer to the boundary line between the two properties to where
    the house now sits. Bovey testified that though the current setback ordinance
    requires property owners build structures five feet away from boundary lines,
    before the 1980s, the setback requirement was seven and a half feet.
    The Ericksons say that the Wilsons used the setback evidence to argue
    that the property owners’ predecessors in interest must have agreed that the
    boundary line runs straight down the middle of the corridor between the Wilsons’
    house and the structures on the Erickson property. The Ericksons contend that
    this argument is not tenable because the setback ordinance was seven-and-a-
    half feet when Johnson’s father moved the house towards the Erickson property.
    They note that such a setback ordinance, if followed, should create a corridor of
    15 feet between the structures on the adjoining properties and that because the
    distance between the structures is not even 10 feet, someone had to have
    violated the setback ordinance. They cite Bovey’s testimony in which he
    concedes that under the old, seven-and-a-half foot setback requirement, one of
    the predecessors in interest must have violated the setback. 9/30/20RP 64–65.
    But even if the placement of the Wilsons’ house does not lend itself to a
    conclusion of mutual recognition and acquiescence, the later maintenance of an
    20
    No. 82259-4-I/21
    approximately 10-foot-wide corridor between structures does. As the trial court
    said,
    [T]he occupants on both sides of the boundary line have taken pains
    to reference and maintain this line in order to maintain the corridor,
    in this case, required by the five-foot setback. . . . [W]hen one side
    built a shed that encroached upon the corridor, when time came to
    resell the property, the shed was restructured so that its wall aligned
    strictly with the corridor’s edge.
    The Ericksons emphasize that Eble, the surveyor, testified that the
    Wilsons’ house was only eight and a half feet from the structures on the Erickson
    property. But even if one or both property owners violate the setback ordinance,
    that does not necessarily mean the owners and their predecessors did not
    mutually recognize and acquiesce to a boundary line running through the trees
    and down the middle of the corridor. Moreover, Clayton testified that the gap
    was nine and a quarter feet and the Wilsons testified about using a 10-foot stick
    to measure the half-way point between their house and the garage on the
    Erickson property and introduced exhibits depicting such measurements.
    The Ericksons also point to Eble’s testimony in which he stated that he
    never relies on setbacks when surveying a boundary line. But what a
    professional surveyor looks at to determine a boundary line differs from what a
    court looks at to determine mutual recognition and acquiescence.
    Finally, the Ericksons say that no evidence shows that their predecessors
    knew the Wilsons’ house violated the setback ordinance and agreed to adjust the
    boundary line accordingly. But they cite no law indicating that such knowledge is
    21
    No. 82259-4-I/22
    required for the Wilsons to prevail in a mutual recognition and acquiescence
    action.
    C. Attorney Fees
    The Ericksons base their challenge to the trial court’s award of attorney
    fees and costs solely on the contention that they should have prevailed below.
    They offer no other grounds to challenge the award. Because we conclude the
    trial court did not err in ruling for the Wilsons, we reject the Ericksons’ argument.
    The Ericksons also request that we award them attorney fees and costs
    on appeal and at the trial level solely on the ground that they should prevail on
    the merits of the case. Because we affirm the trial court’s ruling, we reject the
    request.
    We affirm.
    WE CONCUR:
    22