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Lozano-Cardenas — Fifth Circuit dismisses appeal for lack of jurisdiction where challenged orders were entered by magistrate judge without party consent

Unreported / Non-Citable

Case
United States of America v. David Lozano-Cardenas
Court
U.S. Court of Appeals for the Fifth Circuit
Date Decided
June 10, 2026
Docket No.
25-40800
Topics
Appellate Jurisdiction, Magistrate Judge Authority, Sentence Reduction, Criminal Procedure

Background

David Lozano-Cardenas was a federal criminal defendant in the Southern District of Texas (USDC No. 7:23-CR-745-1) who submitted letter-motions that were construed, at least in part, as motions for a sentence reduction under 18 U.S.C. § 3582(c). A magistrate judge denied those letter-motions. Lozano-Cardenas then filed a notice of appeal identifying the denial of a § 3582(c) sentence-reduction motion as the judgment being appealed, and separately moved the Fifth Circuit for appointment of counsel.

The Fifth Circuit examined its own jurisdiction sua sponte, as it is required to do. The court determined that no order denying a § 3582(c) sentence reduction had ever been entered on the district court docket. The district court’s only relevant ruling — a denial of Lozano-Cardenas’s motion for appointment of counsel — came after his notice of appeal was filed and therefore could not be encompassed by it. The sole orders logically covered by his notice of appeal were the magistrate judge’s denials of his letter-motions.

The Court’s Holding

The Fifth Circuit dismissed the appeal for lack of jurisdiction. Under 28 U.S.C. § 1291, courts of appeals have jurisdiction only over final decisions of district courts. Because the orders at issue were entered by a federal magistrate judge — not a district court judge — and there was no evidence that Lozano-Cardenas had consented to proceed before the magistrate judge, the court had no authority to hear a direct appeal from those rulings. The court relied on United States v. Renfro, 620 F.2d 497 (5th Cir. 1980), and Donaldson v. Ducote, 373 F.3d 622 (5th Cir. 2004).

The court also denied Lozano-Cardenas’s motion for appointment of counsel as moot, given the dismissal of the appeal.

Key Takeaways

  • The Fifth Circuit will examine its own appellate jurisdiction sua sponte, even when neither party raises the issue.
  • A court of appeals lacks jurisdiction to hear a direct appeal from a federal magistrate judge’s ruling unless both parties have consented to proceed before the magistrate judge.
  • A notice of appeal can only encompass judgments or orders that existed at the time it was filed; orders entered afterward are not captured by it.
  • Where no § 3582(c) order appears on the district court docket, an appellant cannot invoke appellate jurisdiction by characterizing the appeal as one from such an order.

Why It Matters

This decision is a straightforward but important reminder that the structural limits on magistrate judge authority have direct consequences at the appellate level. A defendant who litigates a matter before a magistrate judge — without formal consent under 28 U.S.C. § 636(c) — cannot appeal the result directly to the court of appeals. The proper path is to seek review by an Article III district judge first.

For practitioners, the case underscores the importance of carefully identifying the specific order being appealed in a notice of appeal, confirming that order appears on the docket, and ensuring that any magistrate judge proceeding is properly authorized by party consent before investing in an appeal.

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