Tenth Circuit: Sua Sponte Enforcement of FRAP 4(b) and Mootness/Finality Limits on Appeals from Rule 33–to–§ 2255 Recharacterization Notices

1. Introduction

This Order and Judgment arises from post-remand proceedings following a major partial reversal in United States v. Jacobo, No. 23-5114, 2025 WL 481607 (10th Cir. Feb. 13, 2025). Luis Alfredo Jacobo was originally convicted of:

• Continuing Criminal Enterprise (CCE),
• three Drug Conspiracy counts, and
• twenty-one Unlawful Use of a Communication Facility counts.

On direct appeal, the Tenth Circuit reversed only the Drug Conspiracy convictions and remanded with instructions to vacate those convictions and sentences. On remand, the district court dismissed the conspiracy counts and vacated the related life sentence but did not resentence Jacobo because a separate concurrent life sentence for CCE remained.

Jacobo then pursued two post-judgment tracks in the district court:

• A motion to appoint counsel for a “resentencing hearing,” which the district court denied (and denied reconsideration), and
• A Rule 33 motion for a new trial attacking the validity of the CCE conviction after the conspiracy reversal; the district court advised it intended to recharacterize the filing as a § 2255 motion under Castro v. United States, 540 U.S. 375 (2003), and later deemed the motion withdrawn.

Jacobo appealed only the denials of reconsideration (not the later withdrawal order). The Tenth Circuit dismissed the appeal: (i) the counsel-related appeal was untimely under FRAP 4(b), and (ii) the challenge to the recharacterization notice was moot (and, independently, nonfinal and not appealable under § 1292(a)(1)).

2. Summary of the Opinion

• Appointment-of-counsel issue: The appeal was dismissed as untimely under FED. R. APP. P. 4(b)(1)(A). Although FRAP 4(b) is non-jurisdictional, the panel enforced the deadline sua sponte under United States v. Mitchell, 518 F.3d 740 (10th Cir. 2008) because enforcement served systemic interests.
• Recharacterization-notice issue: The appeal was dismissed for lack of jurisdiction because it was moot after the district court deemed the Rule 33 motion withdrawn. The panel further explained that, even if not moot, the “intent-to-recharacterize” order was not final under 28 U.S.C. § 1291 and was not an injunction order appealable under 28 U.S.C. § 1292(a)(1).
• Appellate counsel: The request for appellate counsel under 18 U.S.C. § 3006A was denied because these post-judgment matters were not “ancillary matters appropriate to the proceedings” within the statute’s guarantee, relying on United States v. Howell, 573 F. App'x 795 (10th Cir. 2014).

3. Analysis

A. Precedents Cited (and Their Role)

• United States v. Jacobo, No. 23-5114, 2025 WL 481607 (10th Cir. Feb. 13, 2025)
  This earlier decision defined the remand’s scope: the district court was to vacate only the Drug Conspiracy convictions/sentences. The 2026 panel’s “resentencing counsel” analysis is anchored in that limited remand.
• United States v. Walker, 918 F.3d 1134 (10th Cir. 2019)
  Quoted for the mandate rule: on remand, the district court had “no power or authority to deviate from the mandate.” This controlled the conclusion that no resentencing hearing was authorized, rendering Jacobo’s request for counsel (for resentencing) functionally pointless.
• United States v. Christy, 739 F.3d 534 (10th Cir. 2014)
  Provided the abuse-of-discretion standard for reviewing denials of reconsideration, framing the appellate posture (even though the panel ultimately dismissed rather than reaching merits).
• Garrett v. Selby Connor Maddux & Janer, 425 F.3d 836 (10th Cir. 2005)
  Supported liberal construction of pro se filings, signaling the court’s approach to Jacobo’s pleadings while still enforcing jurisdictional/claim-processing limits.
• United States v. Mitchell, 518 F.3d 740 (10th Cir. 2008) (citing Bowles v. Russell, 551 U.S. 205 (2007))
  Mitchell supplied the key framework: FRAP 4(b) is a non-jurisdictional but “inflexible” claim-processing rule generally invoked by the government, yet enforceable sua sponte when doing so serves broader institutional interests (e.g., minimizing uncertainty and judicial waste). Bowles appears as part of the jurisdiction/claims-processing taxonomy discussion.
• United States v. Oliver, 878 F.3d 120 (4th Cir. 2017) and United States v. Gaytan-Garza, 652 F.3d 680 (6th Cir. 2011)
  Cited to show inter-circuit agreement that appellate courts may raise FRAP 4(b) timeliness issues sua sponte.
• Castro v. United States, 540 U.S. 375 (2003)
  Underpinned the district court’s procedure: before recharacterizing a pro se filing as a first § 2255 motion, the court must warn the litigant and give an opportunity to withdraw or amend. The panel did not reach whether the district court properly applied Castro because the appeal was moot/nonfinal, but Castro is central context: recharacterization can have severe future consequences (second/successive limitations).
• McClendon v. City of Albuquerque, 100 F.3d 863 (10th Cir. 1996)
  Supplied the jurisdictional rule that mootness can be raised sua sponte and requires dismissal when no effectual relief is possible.
• In re Lang, 414 F.3d 1191 (10th Cir. 2005) (quoting Steel Co. v. Citizens for a Better Env't, 523 U.S. 83 (1998))
  Reinforced that jurisdiction is the “first and fundamental question,” justifying the panel’s jurisdiction-first approach.
• In re Overland Park Fin. Corp., 236 F.3d 1246 (10th Cir. 2001) (quoting Church of Scientology v. United States, 506 U.S. 9 (1992))
  Provided the operative test for mootness: whether it is impossible to grant any effectual relief to a prevailing party.
• Graham v. Hartford Life & Accident Ins. Co., 501 F.3d 1153 (10th Cir. 2007) (quoting Rekstad v. First Bank Sys., 238 F.3d 1259 (10th Cir. 2001))
  Defined “final decisions” appealable under 28 U.S.C. § 1291 as those ending litigation on the merits—used to show the “intent-to-recharacterize” order was not final.
• Hayes Fam. Tr. v. State Farm Fire & Cas. Co., 845 F.3d 997 (10th Cir. 2017)
  Stood for the proposition that orders setting the stage for further proceedings are nonfinal and typically not immediately appealable.
• United States v. Howell, 573 F. App'x 795 (10th Cir. 2014)
  Used to deny appellate counsel: collateral proceedings (and similar post-judgment matters) do not trigger the same counsel guarantees under 18 U.S.C. § 3006A.

B. Legal Reasoning

1) Timeliness and Sua Sponte Enforcement of FRAP 4(b)

The panel treated Jacobo’s appeal from the denial of reconsideration of appointed counsel as governed by the criminal appeal deadline: FED. R. APP. P. 4(b)(1)(A) (14 days). Even giving Jacobo the benefit of the prison mailbox rule (FED. R. APP. P. 4(c)), his notice was at least five days late.

The key move is institutional: although the government did not invoke the time bar, the Tenth Circuit enforced it anyway under United States v. Mitchell, explaining that courts may apply FRAP 4(b) sua sponte when enforcement serves interests beyond the parties, particularly avoiding “uncertainty and waste of judicial resources caused by undue delay.”

The court then underscored why the appeal was not merely late but also practically unproductive: Jacobo sought counsel for a resentencing hearing the district court lacked authority to hold. That conclusion flowed from the mandate rule, as articulated in United States v. Walker: the remand was limited to vacating the Drug Conspiracy counts; it did not reopen sentencing on the CCE or other counts.

2) Mootness and Nonfinality of an “Intent-to-Recharacterize” Order

Jacobo attempted to appeal the denial of reconsideration of an order that only advised of an intent to recharacterize his Rule 33 motion as a § 2255 petition (a Castro warning order). But after the notice of appeal, the district court deemed the underlying motion withdrawn, and Jacobo did not appeal that withdrawal order.

Applying McClendon v. City of Albuquerque and the “effectual relief” standard from In re Overland Park Fin. Corp. (quoting Church of Scientology v. United States), the panel concluded the controversy had evaporated: once the motion was withdrawn, there was no operative filing to label as Rule 33 or § 2255, and the court could not grant meaningful relief on the characterization question.

The panel added a separate jurisdictional barrier: even absent mootness, the order was not a “final decision” under 28 U.S.C. § 1291. It did not resolve the merits of the Rule 33 motion; it “set the stage” for further district court proceedings. Under Graham v. Hartford Life & Accident Ins. Co., Rekstad v. First Bank Sys., and Hayes Fam. Tr. v. State Farm Fire & Cas. Co., such interlocutory orders are not immediately appealable.

Finally, the panel rejected Jacobo’s attempt to invoke 28 U.S.C. § 1292(a)(1) (injunction appeals). A recharacterization notice is not an injunction and does not fall within the statutory categories (nor the “practical effect” injunction doctrine on these facts).

3) No Statutory Right to Appellate Counsel on These Post-Judgment Matters

The court denied appointment of appellate counsel under 18 U.S.C. § 3006A(c), reasoning that the appealed post-judgment orders did not constitute “ancillary matters appropriate to the proceedings,” relying on United States v. Howell and emphasizing the collateral/post-judgment nature of the disputes.

C. Impact

• Stronger practical signal on sua sponte FRAP 4(b) enforcement: The decision reinforces that, in the Tenth Circuit, a late criminal notice of appeal can be dismissed even without a government timeliness objection where judicial-administration interests are implicated. This is particularly salient for pro se litigants who may assume waiver by the government.
• Clarifies appealability of Castro warning orders: A district court’s notice of intent to recharacterize a filing (and denial of reconsideration of that notice) is generally not immediately appealable because it is nonfinal; and if the underlying motion is withdrawn, any characterization dispute becomes moot.
• Reinforces the mandate rule’s constraining force on resentencing: Even where a sentence is partially vacated on appeal, a limited remand may leave the district court without authority to revisit other counts—reducing the practical availability of post-remand resentencing litigation (and counsel requests tied to it).
• Procedural roadmap for defendants: The panel explicitly directs that attacks on remaining convictions should proceed via 28 U.S.C. § 2255, subject to § 2255(f)’s one-year limit, rather than through a Rule 33 motion grounded in legal (not factual) innocence.

4. Complex Concepts Simplified

Mandate Rule (Limited Remand)

When an appellate court remands a case with specific instructions, the district court must follow those instructions and cannot expand the scope. Here, the remand was limited to vacating the Drug Conspiracy convictions/sentences. Under United States v. Walker, that limitation meant the district court could not reopen or redo sentencing on the CCE count.

FRAP 4(b): “Non-jurisdictional” but Still Enforceable

A jurisdictional rule cannot be waived and always defeats the court’s power to hear the case. FRAP 4(b)’s deadline is not jurisdictional, meaning the government typically must raise it. But under United States v. Mitchell, the court may still enforce the deadline on its own when broader systemic interests are served.

Prison Mailbox Rule

Under FED. R. APP. P. 4(c), a prisoner’s filing date is generally treated as the date the prisoner delivers the notice to prison officials for mailing, not the date the court receives it. Even with that benefit, Jacobo’s notice was late.

Mootness

A case becomes moot when the court can no longer provide meaningful relief. Once the district court deemed the Rule 33 motion withdrawn, there was no live dispute about whether it should be treated as Rule 33 or § 2255.

Final Decision vs. Interlocutory Order

Under 28 U.S.C. § 1291, appellate courts generally review only final decisions (those that end litigation on the merits). An order announcing an intent to recharacterize and inviting withdrawal/amendment is a preliminary step, not a final resolution—so it is typically not appealable immediately.

Castro Recharacterization Warnings

Courts must be careful when converting a pro se motion into a first § 2255 petition, because a first § 2255 filing can limit later filings as “second or successive.” Castro v. United States requires notice and an opportunity to withdraw or amend to avoid accidental forfeiture of future rights.

5. Conclusion

United States v. Jacobo (10th Cir. Apr. 7, 2026) is a procedural, jurisdiction-centered decision that tightens two practical constraints on post-judgment appellate litigation: (1) criminal appeal deadlines under FRAP 4(b) may be enforced sua sponte when systemic interests justify it, and (2) appellate review is unavailable for disputes over a district court’s nonfinal Castro recharacterization notice—particularly once the underlying motion is withdrawn, rendering the controversy moot. The opinion also underscores the mandate rule’s limiting effect on resentencing after a partial reversal and directs defendants toward § 2255 as the proper vehicle for collateral attacks on remaining convictions.