Sessoms-Deloatch v. United States ( 2020 )


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    DISTRICT OF COLUMBIA COURT OF APPEALS
    No. 20-FM-2
    DWIGHT G. DELOATCH, APPELLANT,
    V.
    ROBIN SESSOMS-DELOATCH, APPELLEE,
    and
    No. 20-CO-119
    MARCELO F. PEREZ, APPELLANT,
    V.
    UNITED STATES, APPELLEE.
    Appeals from the Superior Court
    of the District of Columbia
    (DRB-2086-14 & CF1-23123-09)
    (Hon. Peter A. Krauthamer, Trial Judge)
    (Hon. William M. Jackson, Trial Judge)
    (Decided June 18, 2020)
    Before EASTERLY and DEAHL, Associate Judges, and NEBEKER, Senior Judge.
    2
    DEAHL, Associate Judge: We have consolidated these appeals because they
    share dispositive issues. In each case, a notice of appeal was filed several years late,
    forcing us to confront whether the time prescriptions for noting appeals in D.C. App.
    R. 4 (“Rule 4”) are jurisdictional. Because we hold that Rule 4’s time limits are non-
    jurisdictional, we must further address if and when it is appropriate for us to
    proactively dismiss an appeal as untimely where the appellees have raised no such
    objection.
    The Supreme Court has made clear in recent years that time limits codified
    only in court-made rules—such as Rule 4(a) (governing civil appeals, like the appeal
    filed by Dwight Deloatch) and Rule 4(b) (governing criminal appeals, like the appeal
    filed by Marcelo Perez)—are non-jurisdictional “claim-processing” prescriptions.
    Kontrick v. Ryan, 
    540 U.S. 443
    , 454 (2004); Hamer v. Neighborhood Hous. Servs.
    of Chi., 
    138 S. Ct. 13
    , 17 (2017). This straightforward rule, that courts cannot divest
    themselves of statutorily conferred jurisdiction, compels the conclusion that Rule
    4(a) and 4(b)’s time limitations are non-jurisdictional so that they may be “subject
    to forfeiture if not properly raised by the appellee.” Hamer, 
    138 S. Ct. at 16
    . Our
    past precedents to the contrary—e.g., Frain v. District of Columbia, 
    572 A.2d 447
    ,
    449 (D.C. 1990) (Rule 4(a) “time limit is mandatory and jurisdictional”); McKnight
    v. United States, 
    764 A.2d 240
    , 241 (D.C. 2000) (Rule 4(b) time limits “are both
    3
    mandatory and jurisdictional”)—are irreconcilable with intervening Supreme Court
    precedent and are no longer good law.
    It follows that in the normal case, it falls first to appellees to raise any
    argument that a notice of appeal is untimely under Rule 4. The present appeals are
    not normal cases, however, as each appellant filed a notice of appeal several years
    out of time. This court retains some discretion to enforce claim-processing rules sua
    sponte. Given the substantial delays here, we exercise that discretion and dismiss
    both of these appeals as untimely. See, e.g., United States v. Gaytan-Garza, 
    652 F.3d 680
    , 681 (6th Cir. 2011) (sua sponte dismissing untimely appeal because, while
    defect was non-jurisdictional, dismissal was “appropriate” where notice of appeal
    was “over four years late”); United States v. Oliver, 
    878 F.3d 120
    , 122 (4th Cir.
    2017) (“We conclude that this Court has the authority to dismiss untimely criminal
    appeals sua sponte but that it should exercise that authority only in extraordinary
    circumstances.”); United States v. Mitchell, 
    518 F.3d 740
    , 751 (10th Cir. 2008)
    (declining to dismiss sua sponte appeal that was filed one day late).
    I.
    In the first consolidated case, the trial court issued a judgment of absolute
    divorce settling various claims between Dwight G. Deloatch and his former wife,
    4
    Robin Sessoms-Deloatch, in May 2015. It then denied Mr. Deloatch’s motion to
    vacate the judgment on March 30, 2016. In January 2020, Mr. Deloatch noted an
    appeal from the underlying judgment. This court issued an order directing him to
    show cause why the appeal should not be dismissed as untimely where it was filed
    nearly four years after the time permitted by Rules 4(a)(1) and 4(a)(4)(A)(iii). See
    Rule 4(a)(1) (“The notice of appeal in a civil case must be filed . . . within 30 days
    after entry of the judgment or order from which the appeal is taken . . . .”); Rule
    4(a)(4)(A)(iii) (“the time to file an appeal runs” from denial of motion “to vacate”
    the judgment). Mr. Deloatch failed to respond.
    In the second case, Mr. Perez pled guilty to first-degree child sexual abuse,
    and a judgment was entered in November 2011. He moved to withdraw his guilty
    plea, but on August 31, 2012, the trial court denied that motion because Mr. Perez
    expressly abandoned it. Mr. Perez noted an appeal from that decision in February
    2020, making his appeal more than seven years out-of-time under the applicable
    Rule 4(b). See Rule 4(b)(1) (“A notice of appeal in a criminal case must be filed
    with the Clerk of the Superior Court within 30 days after entry of the judgment or
    order from which the appeal is taken . . . .”). This court issued an order to show
    cause why the appeal should not be dismissed as untimely. Mr. Perez responded
    but, suffice it to say, he offered no adequate explanation for waiting seven-plus years
    5
    to raise a challenge to the August 2012 denial of his motion to withdraw his guilty
    plea.1
    II.
    We first determine whether we have jurisdiction to entertain these appeals.
    See Murphy v. McCloud, 
    650 A.2d 202
    , 203 n.4 (D.C. 1994) (“[W]here a substantial
    question exists as to this court’s subject matter jurisdiction, it is our obligation to
    raise it, sua sponte . . . .”). Under Rule 4(a), an appeal in a civil case must generally
    be filed within thirty days of the challenged judgment’s entry. The same thirty-day
    deadline applies to appeals from criminal cases under Rule 4(b).2 The appeal is thus
    nearly four years late in Mr. Deloatch’s case, and more than seven years late in Mr.
    Perez’s case.
    Mr. Perez’s response makes clear that he is not challenging the August 2012
    1
    ruling regarding his claim that counsel failed to investigate his case, but instead
    wants to press a separate claim never ruled upon by the trial court, namely that he
    directed his counsel to file a notice of appeal and that counsel failed to do so. See
    generally Garza v. Idaho, 
    139 S. Ct. 738
     (2019). Whatever the merits of that claim,
    we cannot review it in the first instance. Washington v. United States, 
    834 A.2d 899
    ,
    906 n.16 (D.C. 2003).
    2
    Rules 4(a) and 4(b) contain exceptions to those time prescriptions—see Rule
    4(a)(5) (governing extensions), 4(b)(4) (same), and 4(a)(7) (permitting the Superior
    Court to reopen the time to appeal under certain conditions)—but they are not
    implicated here.
    6
    We have previously held that failing to satisfy Rule 4’s time limits divests this
    court of jurisdiction, as we have stated that the time requirements in both Rule 4(a)
    and Rule 4(b) are “mandatory and jurisdictional.” See Frain, 
    572 A.2d at 449
     (Rule
    4(a) civil appeal); McKnight, 
    764 A.2d at 241
     (Rule 4(b) criminal appeal). Those
    holdings hewed closely to how the Supreme Court had, at one point in time,
    described various rule-based filing deadlines. For instance, in Frain, we relied
    primarily upon Browder v. Director, Department of Corrections, 
    434 U.S. 257
    (1978), which described federal Rule 4 as “mandatory and jurisdictional.”3 Frain,
    
    572 A.2d at
    449 (citing Browder, 
    434 U.S. at 264
    ). Likewise in McKnight, we relied
    on authority that traces back to the Supreme Court’s opinion in United States v.
    3
    Browder was discussing Rule 4’s thirty-day time limit alongside the thirty-
    day time limit codified by federal statute. Browder, 
    434 U.S. at 264
     (“Under Fed.
    Rule App. Proc. 4(a) and 
    28 U.S.C. § 2107
    , a notice of appeal in a civil case must
    be filed within 30 days of entry of the judgment or order from which the appeal is
    taken. This 30-day time limit is ‘mandatory and jurisdictional.’”). Unlike court-
    made rules, statutory time limits are sometimes jurisdictional, at least when “the
    Legislature clearly states that a threshold limitation on a statute’s scope shall count
    as jurisdictional.” Gonzalez v. Thaler, 
    565 U.S. 134
    , 141 (2012) (quoting Arbaugh
    v. Y & H Corp., 
    546 U.S. 500
    , 515 (2006)); see also United States v. Kwai Fun
    Wong, 
    575 U.S. 402
    , 409 (2015) (statutory time bars “cabin a court’s power only if
    Congress has ‘clearly stated’ as much”); Sebelius v. Auburn Reg’l Med. Ctr., 
    568 U.S. 145
    , 153–54 (2013) (citing Arbaugh, 
    546 U.S. at
    515–16). They may also do
    so, at least as between Article III courts, when the statutory time prescription at issue
    “govern[s] the transfer of adjudicatory authority from one Article III court to
    another.” Hamer, 
    138 S. Ct. at 20
    .
    7
    Robinson,4 which proclaimed that “the filing of a notice of appeal within the 10-day
    period prescribed by Rule 37(a)(2) is mandatory and jurisdictional.” 
    361 U.S. 220
    ,
    224 (1960).
    That would normally be the end of the matter. See M.A.P. v. Ryan, 
    285 A.2d 310
    , 312 (D.C. 1971) (explaining that “no division of this court will overrule a prior
    decision of this court,” reserving such reconsideration for the “court en banc”)
    (footnote omitted).   We as a division would usually be bound by Frain and
    McKnight, which held (respectively) that Rule 4(a) and Rule 4(b)’s time limits are
    jurisdictional. But in the years following those opinions, the Supreme Court has
    taken direct aim at their underpinnings and offered a course correction. It has
    acknowledged its own “less than meticulous” use of the word jurisdictional in cases
    like Robinson and Browder. See Kontrick, 
    540 U.S. at
    454 (citing Robinson as
    exemplifying the Supreme Court’s own past imprecisions); Hamer, 
    138 S. Ct. at
    21
    n.11 (noting that Robinson “mistakenly suggested that a claim-processing rule was
    ‘mandatory and jurisdictional’”); Arbaugh, 
    546 U.S. at 510
     (admitting the Supreme
    Court has “sometimes been profligate” in its use of the word “jurisdictional,” and
    4
    In describing Rule 4 as “mandatory and jurisdictional,” McKnight, 
    764 A.2d at 241
    , relied on United States v. Jones, 
    423 A.2d 193
    , 196 (D.C. 1980), which relied
    on West v. United States, 
    346 A.2d 504
    , 506 (D.C. 1975), which in turn relied on the
    language quoted above from Robinson, 
    361 U.S. at 224
    .
    8
    highlighting Robinson as an example).           It has clarified, repeatedly and in no
    uncertain terms, that “a time limit prescribed only in a court-made rule . . . is not
    jurisdictional; it is, instead, a mandatory claim-processing rule subject to forfeiture
    if not properly raised by the appellee.” Hamer, 
    138 S. Ct. at 16
    ; see also Kontrick,
    
    540 U.S. at 454
     (diagnosing its own mistakes of “describ[ing] emphatic time
    prescriptions in rules of court” as “jurisdictional”). The reason for that, the Court
    explained, is that only the legislature can alter a court’s basic jurisdiction. Kontrick,
    
    540 U.S. at 452
     (“Only Congress may determine a lower federal court’s subject-
    matter jurisdiction.”); Hamer, 
    138 S. Ct. at 17
     (“A time limit not prescribed by
    Congress ranks as a mandatory claim-processing rule . . . .”). While a court might
    constrain itself via court-made rules, it can also free itself of its self-imposed
    constraints so that they are, by their nature, non-jurisdictional restrictions.
    This is not the first time that we have reversed course to acknowledge that
    time limits in court-made rules are non-jurisdictional. In Smith v. United States, we
    held that Superior Court Criminal Rule 35(b)’s 120-day time limit for seeking a
    reduction of a sentence is non-jurisdictional. 
    984 A.2d 196
    , 200 (D.C. 2009). While
    we had previously held to the contrary, 5 Smith acknowledged that intervening
    5
    Brown v. United States, 
    795 A.2d 56
    , 61 n.2 (D.C. 2002); Littlejohn v.
    United States, 
    749 A.2d 1253
    , 1258 (D.C. 2000).
    9
    Supreme Court precedents substantially undermined those prior holdings and
    established the clear tenet that “court-promulgated rules” are “not jurisdictional and
    can be relaxed by the Court in the exercise of its discretion.” 
    Id.
     (quoting Bowles v.
    Russell, 
    551 U.S. 205
    , 211–12 (2007)).
    Likewise in Mathis v. District of Columbia Housing Authority, we held that
    D.C. App. R. 15’s deadline for filing a petition for review of an agency order is non-
    jurisdictional and noted that the rationale behind prior precedent to the contrary had
    been debunked. 
    124 A.3d 1089
    , 1102–03 (D.C. 2015) (abrogating Capitol Hill
    Restoration Soc’y v. District of Columbia Mayor’s Agent for Historic Pres., 
    44 A.3d 271
     (D.C. 2012)). That was true even though Rule 15 had some statutory backing:6
    
    D.C. Code § 2-510
    (a) (2016 Repl.) states that petitions for agency review “shall be
    6
    As explained supra note 3, statutes can divest courts of jurisdiction in a way
    that court-made rules cannot. Even so, we have taken a piecemeal approach to
    evaluating court-made rules in cases like Smith and Mathis, and we follow the same
    approach today, opining only that the particular time prescriptions in Rule 4 are non-
    jurisdictional. There notably are clear statutory time prescriptions for filing certain
    types of appeals, and we express no opinion as to whether those are jurisdictional
    because they are not implicated here. See, e.g., 
    D.C. Code § 17-307
    (b) (2012 Repl.)
    (providing that to appeal “judgments of the Small Claims and Conciliation Branch
    of the Superior Court,” parties must submit an application to allow such an appeal
    within three days); 
    D.C. Code § 50-1301.04
    (b) (2014 Repl.) (providing “30 days” to
    file an application to appeal a “denial, revocation, or suspension” of motor vehicle
    registration).
    10
    filed . . . within such time as” prescribed by court rule. No matter, we held, because
    that statutory prescription evinces “no position on issues of timeliness and delegates
    all decisions about timeliness to our court.” Mathis, 124 A.3d at 1103. The same is
    true here, as the relevant statutory prescription leaves it to us to determine the
    deadlines for noting appeals, if we see fit to impose any deadlines at all. See 
    D.C. Code § 17-307
    (a) (2012 Repl.) (“[T]he time during which an appeal may be taken
    . . . may be fixed by rules of the District of Columbia Court of Appeals.”) (emphasis
    added).7
    The inescapable conclusion is that the jurisprudential basis for Frain and
    McKnight has been substantially undermined by a swath of intervening Supreme
    Court precedents, headlined by Kontrick and Hamer, which demonstrate why Rule
    7
    For the same reason, the statutory prescription that this court “shall conduct
    its business according to the Federal Rules of Appellate Procedure unless the court
    prescribes or adopts modifications of those Rules” cannot be viewed as a
    jurisdictional command. 
    D.C. Code § 11-743
     (2012 Repl.); see also 
    D.C. Code § 11
    -
    946 (instructing that the Superior Court should likewise conduct itself according to
    Federal Rules “unless it prescribes or adopts” modifications to them). This provision
    expressly permits us to deviate from the federal rules and the pertinent federal Rule
    4 is itself of no jurisdictional import. Hamer, 
    138 S. Ct. at 21-22
    . Nor could D.C.
    App. R. 26(b)(1)’s prescription that we may not extend the time for filing an appeal
    be jurisdictional, because that too is a court-made rule, and just as we may free
    ourselves from the self-imposed constraints of Rule 4, we can likewise unbind
    ourselves from the self-imposed constraints of Rule 26. Stacking one non-
    jurisdictional constraint upon another does not somehow give rise to a jurisdictional
    Voltron with powers exceeding the sum of its constituent parts.
    11
    4(a) and Rule 4(b)’s time prescriptions are, by themselves, non-jurisdictional. We
    thus have jurisdiction to entertain these late-filed appeals.
    III.
    That we have jurisdiction to entertain these appeals does not require us to do
    so. As we have noted, Rule 4 is what is described as a mandatory claim-processing
    rule. See Hamer, 
    138 S. Ct. at 17
    . Such rules “seek to promote the orderly progress
    of litigation by requiring that the parties take certain procedural steps at certain
    specified times.” Henderson ex rel. Henderson v. Shinseki, 
    562 U.S. 428
    , 435
    (2011). “Filing deadlines . . . are quintessential claim-processing rules.” 
    Id.
     When
    a mandatory claim-processing rule is “properly invoked” by a party, it “must be
    enforced” by the court. Hamer, 
    138 S. Ct. at 17
    . However, claim-processing rules
    are also “subject to forfeiture if not properly raised by the appellee.” 
    Id. at 16
    ; see
    also Neill v. District of Columbia Pub. Emp. Relations Bd., 
    93 A.3d 229
    , 238 (D.C.
    2014); Smith, 
    984 A.2d at
    199 (citing Eberhart v. United States, 
    546 U.S. 12
    , 19
    (2005)).
    Neither appellee has objected to the untimeliness of the present appeals,
    though that can hardly be counted against them given this court’s longstanding
    practice of doing that work for appellees. For decades our precedents dictated that
    12
    Rule 4 deadlines were jurisdictional and, as a result, we as a court had an obligation
    to steadfastly police those deadlines. It has thus been our court’s practice to sua
    sponte issue orders directing appellants to show cause why appeals should not be
    dismissed whenever we detected an apparently late notice of appeal. Parties may
    have understandably grown reliant on that practice. While any change in this court’s
    practice of issuing show cause orders is a topic for another day, it is fair to say that
    it is a live issue and any appellee who detects an untimely notice of appeal would be
    well-advised to move to dismiss it as untimely, see D.C. App. R. 13, 27, rather than
    assuming our current practice will endure as is.
    The question remains (regardless of whether a show cause order has issued),
    having held Rule 4’s time limits non-jurisdictional, when should we take the
    initiative to dismiss an appeal as untimely where no party is asking us to do so?8
    Our rules provide that we “sua sponte or upon motion of the appellee . . . may dismiss
    an appeal for failure to comply with a rule of this court.” D.C. App. R. 13(a). We
    are thus expressly empowered to dismiss appeals for failure to comply with Rule 4’s
    deadlines regardless of whether any party is requesting we do so. When to take that
    8
    We recently noted this open question, deferring its resolution for a case that
    presented it. Baldwin v. District of Columbia Office of Emp. Appeals, 
    226 A.3d 1140
    , 1144 (D.C. 2020).
    13
    proactive initiative, and when to refrain, is a thornier question guided by competing
    interests.
    On the one hand, and in favor of dismissing these appeals, is the interest in
    the orderly administration of justice and the “deep-seated interest in promoting the
    finality of judgments.” Siddiq v. Ostheimer, 
    718 A.2d 145
    , 147 (D.C. 1998) (internal
    quotation marks omitted); see also Clement v. District of Columbia Dep’t of Human
    Servs., 
    629 A.2d 1215
    , 1218 (D.C. 1993) (surveying the importance of finality in
    various contexts). To permit a litigant to sit on their right to appeal for several years
    and then reinstitute dormant litigation by noting an appeal would frustrate that
    interest, jeopardize “the fairness of our procedures,” and unnecessarily burden the
    courts.9 Oliver, 878 F.3d at 126. We have described this need for finality as a
    9
    Of special concern are cases where appellees are unrepresented and might
    not think to raise Rule 4’s time limits as a defense to reinitiating litigation that has
    gone stale over the years. We should be particularly mindful of that concern in this
    court, where “[i]n 2017, the D.C. Court of Appeals saw pro se participation at the
    time of filing ranging from 50% to 90% depending on case type.” See District of
    Columbia Access to Justice Commission, Delivering Justice: Addressing Civil Legal
    Needs in the District of Columbia at 4 (2019), https://www.dcaccesstojustice.
    org/assets/pdf/Delivering_Justice_2019.pdf https://perma.cc/BP2W-3SHA. Indeed,
    Ms. Sessoms-Deloatch did not have a lawyer in the divorce proceedings that Mr.
    Deloatch now seeks to upend. This concern can of course cut both ways, as
    appellants are also frequently uncounseled and a lack of representation is surely at
    the root of many late notices of appeal. We focus on unrepresented appellees in this
    footnote only because this paragraph focuses on reasons favoring this Court’s sua
    sponte intervention, rather than those cutting against it.
    14
    “fundamental principle of litigation that has been stressed in a variety of contexts.”
    Clement, 
    629 A.2d at 1218
    .
    On the other hand, in favor of allowing the appeals to proceed, is the fact that
    ours is fundamentally an adversarial system and “we rely on the parties to frame the
    issues for decision and assign to courts the role of neutral arbiter of matters the
    parties present.” Greenlaw v. United States, 
    554 U.S. 237
    , 243 (2008); see also
    Vergara v. City of Chicago, 
    939 F.3d 882
    , 885–86 (7th Cir. 2019) (noting federal
    Rule 4(a) is non-jurisdictional and must be enforced when “properly invoked,” but
    stressing that “the ‘properly invoked’ qualifier is important, for a litigant may forfeit
    the benefit of these rules”) (cleaned up). Where no party has raised an objection, as
    here, “appellate courts do not sit as self-directed boards of legal inquiry and research,
    but essentially as arbiters of legal questions presented and argued by the parties
    before them.” Rose v. United States, 
    629 A.2d 526
    , 536-37 (D.C. 1993) (quoting
    Carducci v. Regan, 
    714 F.2d 171
    , 177 (D.C. Cir. 1983)).
    We find the balance tips in favor of dismissal of these appeals given the
    substantial delays in filing the present notices of appeal. Perhaps a slight or moderate
    delay in filing a notice of appeal would not warrant this court’s sua sponte
    intervention, but we adopt the view of those federal circuit courts that have found
    15
    that at least a substantial delay does. See Gaytan-Garza, 
    652 F.3d at 681
     (finding
    sua sponte dismissal “appropriate here, as Gaytan-Garza’s delay of over four years
    in filing his appeal implicates the important judicial interests of finality of
    convictions and efficient administration of claim processing”); Mitchell, 
    518 F.3d at 750
     (timeliness of criminal appeal should not be raised sua sponte “when judicial
    resources and administration are not implicated and the delay has not been
    inordinate”).10
    We do not attempt to draw a line as to when an appeal is filed so late as to
    merit our sua sponte intervention, as that is “a task best resolved according to the
    varying circumstances of each case.” Mitchell, 
    518 F.3d at
    750 n.13. To provide
    some guideposts, we note that the United States Court of Appeals for the Sixth
    Circuit in Gaytan-Garza found that a notice of appeal filed “over four years late”
    merited sua sponte dismissal. 
    652 F.3d at 680
    . On the other side of the ledger, the
    10
    One federal circuit court has articulated a narrower view of when sua sponte
    dismissal of untimely appeals is appropriate. The United States Court of Appeals
    for the Fourth Circuit has indicated, albeit in what is arguably dicta, that it will
    dismiss criminal appeals as untimely on its own motion only under limited
    circumstances where the judiciary’s institutional interests outweigh the interest in
    adversarial party presentation. Oliver, 878 F.3d at 128 (choosing to raise timeliness
    where, for example, “a court has issued a subsequent judgment . . . in reliance on the
    judgment appealed” or “the defendant has completed collateral review of the same
    judgment”).
    16
    United States Court of Appeals for the Tenth Circuit found that “it would be
    inappropriate to raise sua sponte the timeliness of [a] notice of appeal” that was only
    one day late. Mitchell, 
    518 F.3d at 751
    . While there is several years’ worth of
    daylight between these guideposts, these appeals—noted nearly four years late in
    Mr. Deloatch’s case and more than seven years late in Mr. Perez’s case—fall on the
    Gaytan-Garza side of the ledger. They involve substantial delays that warrant sua
    sponte dismissal. Any further refinement of how late is so late as to warrant our
    intervention is better left to case-by-case adjudication or the rulemaking process.11
    In the case of more negligible delays, it would be hazardous for parties to rely
    on our sua sponte action; they instead should raise their own objections whenever
    an appeal is untimely. See supra n. 8. As we have already noted, mandatory claim-
    processing rules like Rule 4 “must be enforced” when properly invoked by the
    appellee, Hamer, 
    138 S. Ct. at 17
    ,12 and an appellee is free to assert the untimeliness
    11
    We do not mean to suggest that the length of delay is the only relevant
    consideration in determining when this court’s sua sponte intervention is warranted.
    While we have no occasion to enumerate what other considerations should be taken
    into account in future cases, one could at least argue that relevant considerations
    include any explanation offered for the delay and the underlying merits of the appeal,
    among other possible criteria that we do not endeavor to catalog here.
    12
    Hamer expressly reserved the question of “whether mandatory claim-
    processing rules may be subject to equitable exceptions.” 
    138 S. Ct. at
    18 n.3 (citing
    Kontrick, 
    540 U.S. at 457
    ).
    17
    of an appeal under Rule 4 via a motion to dismiss as early as the moment a notice of
    appeal is filed, see D.C. App. R. 13(a), 27. We do not believe that such case-by-
    case adjudication will waste this court’s and the litigants’ time and resources.
    Appellees concerned with their own resources will no doubt act promptly and move
    to dismiss appeals that are late filed before they enter the fray of the merits. When
    they fail to do so, they can hardly complain about a resource strain that they visited
    upon themselves through their own inaction. As for the court’s resources, it seems
    just as likely that taking ourselves out of the business of proactively policing appeals
    that are only slightly untimely will conserve court resources. Whatever doubts there
    are about that prediction are outweighed by the core tenet of our adversarial system
    that we generally place the onus on litigants, rather than the court, to raise their
    claims. 13 See Greenlaw, 
    554 U.S. at 243
    ; Randolph v. United States, 
    882 A.2d 210
    ,
    13
    This court might also promulgate a rule requiring appellees to raise any
    Rule 4 timeliness objections at some particular point, upon risk of forfeiture. That
    would eliminate any guesswork about when appellees must raise a Rule 4 timeliness
    challenge—be it within some number of days of the notice of appeal, at any time
    before merits briefing, in the merits briefing itself, before a decision is issued, or
    before the mandate is issued—in order for it to be considered “properly invoked”
    such that it “must be enforced” by the court. Hamer, 
    138 S. Ct. at 17
    . That would
    also advance the goal of resolving the timeliness of appeals at their outset without
    treading upon the adversarial bedrock that we generally will not entertain non-
    jurisdictional arguments that the parties themselves have not raised. We do not
    intend anything in this opinion to preclude any future rules amendments to address
    how this court will treat untimely appeals.
    18
    223 (D.C. 2005). That maxim will bend in some cases, like this one, but we will not
    discard it entirely in the name of some perceived but uncertain efficiency.
    IV.
    We dismiss these appeals as untimely.
    So ordered.