Mandate Rule Clarified: A Remand to Arbitrate Conflicting Awards’ Res Judicata Effects Does Not Bar Entry of an Amended Judgment Confirming the Awards

1. Introduction

Sullivan v. Feldman (5th Cir. June 2, 2026) is a mandate-rule decision arising out of unusually sprawling, parallel arbitration proceedings among the same actors. Doctors Scott Sullivan and Frank DellaCroce (and their related entities) disputed with Stewart A. Feldman, the Feldman Law Firm, and the “Capstone” entities over participation in a third-party insurance/reinsurance risk-pooling arrangement. After multiple arbitrations—described in the earlier appeal as a “Bleak House of arbitration”—four arbitrators issued four different awards, each in favor of the Doctors, including one extraordinarily large award by arbitrator Charles Jones.

The district court confirmed all four awards and entered a partial final judgment effectively requiring payment of the Jones award (with substantial daily post-judgment interest). In the first appeal, Sullivan v. Feldman ("Sullivan I"), the Fifth Circuit largely affirmed but (i) reversed in part as to one defendant (Jeff Carlson) and (ii) vacated and remanded an injunction that had barred further arbitrations, so that the parties could arbitrate the inconsistencies (i.e., the res judicata effects among the conflicting awards).

On remand, the district court amended the judgment to remove Carlson, lifted the arbitration injunction, and stayed the case while a new arbitration proceeded to resolve res judicata issues. The Feldman/Capstone parties appealed again, arguing the district court violated the Sullivan I mandate by entering an amended judgment before the post-remand arbitration concluded. The Fifth Circuit framed the appeal narrowly: whether the district court complied with the mandate.

2. Summary of the Opinion

The Fifth Circuit affirmed the amended partial final judgment and the denial of the Rule 59(e) motion. It held that the district court complied with both the letter and spirit of the Sullivan I mandate. Critically, the panel concluded that Sullivan I did not require the res judicata-focused arbitration to occur before the district court entered the amended judgment confirming the awards; the earlier mandate contained no such sequencing directive, and the amended judgment’s stay respected the remand’s purpose.

3. Analysis

A. Precedents Cited

• Sullivan v. Feldman ("Sullivan I"). 132 F.4th 315 (5th Cir. 2025).
  Functioned as the controlling mandate and the interpretive baseline. The 2026 panel read Sullivan I as (1) affirming confirmation of the Jones award except as to Jeff Carlson, and (2) remanding only to lift the arbitration injunction so that inconsistencies among the awards could be arbitrated. Because Sullivan I did not criticize the district court’s earlier entry of judgment “based on the Jones award,” and did not direct that arbitration must precede a renewed judgment, it could not be used to impose a new sequencing requirement on remand.
• League of United Latin Am. Citizens, Dist. 19 v. City of Boerne, 675 F.3d 433 (5th Cir. 2012) (quoting Briggs v. Penn. R.R. Co., 334 U.S. 304 (1948)) and quoting United States v. Carales-Villalta, 617 F.3d 342 (5th Cir. 2010).
  Supplied the core mandate-rule formulation: a district court may not “deviate from the mandate,” and must follow “both the letter and spirit” of the appellate decision. These cases also underscore that mandate compliance is not a mechanical exercise; it requires reading the opinion and the circumstances it embraces.
• In re Deepwater Horizon, 928 F.3d 394 (5th Cir. 2019) (citing Ball v. LeBlanc, 881 F.3d 346 (5th Cir. 2018)).
  Provided the standard of review (de novo) and described the analytic “first step”: “figuring out what our mandate said,” including consulting the prior opinion. This reinforced that the inquiry is bounded by the actual mandate’s “compass,” not litigants’ preferences about what the mandate should have said.
• In re Sanford Fork & Tool Co., 160 U.S. 247 (1895) and Sprague v. Ticonic Nat'l Bank, 307 U.S. 161 (1939).
  These foundational Supreme Court statements operationalized the mandate rule: courts must consult the prior opinion to understand the decree, and the mandate controls only matters “within its compass.” The Fifth Circuit used these principles to reject the appellants’ attempt to infer a sequencing directive absent from Sullivan I.

B. Legal Reasoning

The panel’s reasoning proceeded in a classic mandate-rule sequence:

1. Identify the mandate’s scope. The court asked what Sullivan I actually required on remand. The earlier opinion (i) removed Carlson as a proper party for the Jones award’s confirmation and (ii) vacated/remanded the anti-arbitration injunction so that the inconsistencies among the awards could be arbitrated.
2. Reject implied sequencing requirements not found in the mandate. The Feldman/Capstone parties argued that allowing arbitration to address res judicata effects necessarily implied that arbitration had to occur before entry of an amended judgment. The court refused that inference, emphasizing that Sullivan I “did not determine whether the arbitration should precede the rendering of judgment,” contained no procedural criticism of judgment issuance, and in fact discussed the existing judgment and post-judgment interest while affirming confirmation of the Jones award except as to Carlson.
3. Confirm “spirit” compliance through the stay. The district court’s amended judgment lifted the injunction and stayed the case pending the new arbitration (before arbitrator Bill Boyce) to resolve res judicata effects. This stay aligned with Sullivan I’s goal—allowing an arbitral mechanism to address inconsistencies—without rewriting the mandate to require judgment to await the arbitration’s outcome.

In short, the Fifth Circuit treated the mandate rule as a constraint on deviation, not a license to import extra steps by implication—particularly when the prior opinion had already affirmed confirmation of the awards (with the limited Carlson correction).

C. Impact

Although the opinion is “not designated for publication,” it illustrates several practically important points for federal litigation involving arbitration and repeated appeals:

• Mandates are read narrowly and textually. Litigants cannot convert a remand authorizing further arbitration into a requirement that arbitration must occur before the district court can enter (or re-enter) a confirming judgment, unless the appellate court actually said so.
• District courts retain procedural discretion on remand within the mandate’s compass. Here, the district court could (a) amend the judgment to reflect the appellate correction (removing Carlson), (b) lift the arbitration injunction, and (c) stay proceedings to allow arbitration to address res judicata effects—without postponing judgment issuance.
• Post-remand arbitration can coexist with a confirming judgment. The decision signals that a court can preserve the enforceability posture of confirmed awards while still allowing subsequent arbitration to determine how conflicting awards interact (e.g., via res judicata principles), particularly when the appellate decision did not condition judgment on completion of that arbitration.

4. Complex Concepts Simplified

• Mandate rule: After an appellate decision, the trial court must do what the appellate court directed—no more, no less—on issues the mandate covers.
• “Letter and spirit” of the mandate: Courts must follow the explicit instructions (“letter”) and also avoid actions that would undermine the appellate decision’s logic and purpose (“spirit”).
• Res judicata effects among awards: A determination (here, in arbitration) about whether and how one final award precludes, limits, or controls issues or claims addressed in another award involving the same parties and underlying dispute.
• Rule 59(e) motion: A motion asking the district court to alter or amend its judgment; typically used to correct clear errors or account for new developments.
• Partial final judgment: A judgment that finally resolves certain claims/parties while other aspects may remain pending; it can be appealable depending on procedural posture.
• Stay pending arbitration: The court pauses the case to allow arbitration to proceed, without necessarily undoing or delaying all prior court actions (unless ordered).

5. Conclusion

Sullivan v. Feldman reinforces a disciplined approach to the mandate rule: a district court’s task on remand is to implement what the appellate court actually decided within the mandate’s “compass.” Because Sullivan I did not direct that arbitration of the awards’ res judicata effects must occur before entry of an amended judgment confirming the awards, the district court did not err by issuing the amended judgment (removing Carlson, lifting the arbitration injunction) while staying the case to permit the new arbitration to proceed. The decision thus highlights how appellate mandates constrain remand proceedings—and how attempts to infer additional procedural prerequisites will fail absent clear appellate instruction.