Summary Judgment Reversible Error: District Courts Must Analyze Self-Interested Testimony on Insurable Interest and Explain Their Reasons

1. Introduction

Case: Marbury v. United National Insurance Company, No. 26-30005 (5th Cir. Sept. 4, 2026) (per curiam) (not designated for publication).
Parties: Annie Marbury (Plaintiff–Appellant) vs. United National Insurance Company (Defendant–Appellee).
Posture: Second Fifth Circuit appeal following a prior remand in Marbury v. United Nat'l Ins. Co. (Marbury I), No. 24-30599, 2025 WL 2126664 (5th Cir. July 29, 2025).

The dispute arises from a homeowner-type insurance policy issued by United covering a house owned by, and affiliated with, the Church of Jesus Christ House of Prayer (“Church”). Marbury co-founded the Church and serves as its president and registered agent. After Hurricane Laura damaged the property (August 2020), United paid $47,889.00 on the claim. Marbury sued seeking an additional $192,425.05. United sought summary judgment primarily on the ground that Marbury lacked an “insurable interest” under Louisiana law.

The central issue on this second appeal is not the ultimate existence of Marbury’s insurable interest, but whether the district court applied the correct summary-judgment methodology—particularly whether it impermissibly required documentary corroboration and failed to analyze Marbury’s affidavit/deposition testimony for the recognized deficiencies (conclusory/vague/lack of personal knowledge) before disregarding it.

2. Summary of the Opinion

The Fifth Circuit vacated summary judgment and remanded again. The court held that the district court committed reversible error by failing to meaningfully address Marbury’s sworn testimonial evidence (affidavit and deposition) under the governing summary-judgment standards. While the district court could discount the documentary materials for the reasons it gave (timing, payee, amounts, ambiguity), it could not effectively ignore sworn testimony or impose a corroboration requirement without analyzing whether the testimony was inadmissibly conclusory, vague, or unsupported by personal knowledge.

The panel also rejected Marbury’s procedural complaint that the district court abused its discretion by considering United’s late “reply” and denying a motion to strike, finding no substantial prejudice and emphasizing the district court’s broad discretion on scheduling matters.

3. Analysis

3.1. Precedents Cited

A. Prior Fifth Circuit mandate and Louisiana “insurable interest” framing

  • Marbury v. United Nat'l Ins. Co. (Marbury I), 2025 WL 2126664 (5th Cir. July 29, 2025)
    Influence: This is the controlling “law of the case” and mandate framework. In Marbury I, the Fifth Circuit held that Marbury could have an insurable interest even if the Church owned/controlled the property, so long as she could show a “substantial economic interest” exposing her to “direct, immediate or potential financial loss.” It also faulted the district court for dismissing testimony as “self-serving” without assessing whether it was conclusory or vague, and ordered limited discovery focused on Marbury’s economic interest (mortgage payments, furnishings, etc.). The second panel found the district court again failed to perform the required analysis—thus failing to conform to the mandate’s methodological instructions.
  • Armenia Coffee Corp. v. Am. Nat'l Fire Ins. Co., 2006-0409, p. 9 (La. App. 4 Cir. 11/21/06), 946 So. 2d 249, 254
    Influence: Quoted (via Marbury I) for the Louisiana insurable-interest principle: an insurable interest exists where the insured faces “direct, immediate or potential financial loss.” This case underwrites the key doctrinal point that ownership is not the sole measure; economic exposure can suffice.

B. Summary judgment standards: no credibility weighing; treatment of “self-serving” testimony

  • Am. Fam. Life Assurance Co. of Columbus v. Biles, 714 F.3d 887, 895 (5th Cir. 2013) (per curiam)
    Influence: Supplies the de novo review standard and the requirement to view evidence in the light most favorable to the nonmovant.
  • Turner v. Baylor Richardson Med. Ctr., 476 F.3d 337, 343 (5th Cir. 2007)
    Influence: Reinforces that courts may consider all record evidence but must not make credibility determinations or weigh evidence at summary judgment—important where the district court’s approach effectively discounted sworn testimony.
  • Guzman v. Allstate Assurance Co., 18 F.4th 157, 160–61 (5th Cir. 2021)
    Influence: The opinion’s centerpiece authority on “self-serving” testimony. Guzman holds that self-interested affidavits and depositions can create fact issues and cannot be discounted merely because they are self-serving, unless the statements are conclusory, vague, or not based on personal knowledge. The panel used this to reject a de facto corroboration requirement.
  • Salazar v. Lubbock Cnty. Hosp. Dist., 982 F.3d 386, 392 (Ho, J., concurring) (quoting Bargher v. White)
    Influence: Cited for the proposition that “self-serving” does not reduce evidentiary value in the summary-judgment context.
  • Bargher v. White, 928 F.3d 439, 445 (5th Cir. 2019)
    Influence: Provides the quoted rule (via Salazar) that self-serving assertions may still create a genuine dispute.

C. What makes an affidavit insufficient: conclusory/vague/ultimate facts

  • Orthopedic & Sports Inj. Clinic v. Wang Lab'ys, Inc., 922 F.2d 220, 224 (5th Cir. 1991)
    Influence: Supplies the “level of conclusoriness” threshold—affidavits must contain enough concrete facts to support a genuine issue.
  • Galindo v. Precision Am. Corp., 754 F.2d 1212, 1216 (5th Cir. 1985)
    Influence: Reiterates that unsupported affidavits stating ultimate or conclusory facts or legal conclusions cannot defeat summary judgment. The panel emphasized that the district court must engage this framework if it intends to disregard sworn testimony.
  • Kariuki v. Tarango, 709 F.3d 495, 505 (5th Cir. 2013)
    Influence: Example where vague and general statements did not create a fact issue, illustrating what “vague” looks like in practice.
  • Rushing v. Kan. City S. Ry. Co., 185 F.3d 496, 513–14 (5th Cir. 1999)
    Influence: Counter-example: specific sworn testimony is not conclusory. Used to show the district court must assess specificity rather than dismissing testimony wholesale.

D. Requirement that district courts explain summary judgment reasoning

  • Wildbur v. ARCO Chem. Co., 974 F.2d 631, 644 (5th Cir. 1992)
    Influence: The opinion invokes Wildbur to require that a district court explain its reasons for granting summary judgment in sufficient detail—particularly critical where the court appears to have ignored categories of evidence (here, affidavit/deposition testimony).

E. Procedural discretion: late filings and motions to strike

  • Hetzel v. Bethlehem Steel Corp., 50 F.3d 360, 367 (5th Cir. 1995)
    Influence: Cited to support broad district-court discretion to extend deadlines and consider untimely filings.
  • Huynh v. Walmart Inc., 30 F.4th 448, 458 (5th Cir. 2022)
    Influence: Used to emphasize that striking evidence requires showing “substantial prejudice”; Marbury failed to show such prejudice.

3.2. Legal Reasoning

The panel’s reasoning is procedural and methodological, but it is tightly connected to the merits because methodology determines what evidence may be considered to create a genuine dispute over “insurable interest.”

  1. The court polices a recurring summary-judgment error: treating testimonial evidence as insufficient absent corroboration.
    The Fifth Circuit read the district court’s approach as imposing (explicitly or functionally) a documentary corroboration requirement—i.e., refusing to credit sworn testimony unless supported by pre-loss documentation. The panel held this contradicts Fifth Circuit law: sworn, competent testimony can create a fact issue even if self-interested, unless it is conclusory, vague, or not based on personal knowledge (as framed by Guzman v. Allstate Assurance Co. and the line of cases that follow).
  2. Ignoring affidavit/deposition evidence—without analyzing recognized deficiencies—is reversible error.
    The court acknowledged the district court’s criticisms of the documentary evidence (checks payable to the Church, amounts not matching the note, post-loss timing, CashApp ambiguity, lack of furniture proof). But it found a distinct problem: the district court did not meaningfully address Marbury’s affidavit and deposition, and did not explain why those sworn statements were conclusory/vague/non-competent. Merely noting that an affidavit was “submit[ted]” is not an analysis.
  3. A district court must explain its summary-judgment reasoning in enough detail to permit meaningful appellate review.
    Citing Wildbur v. ARCO Chem. Co., the panel required an explanation “in sufficient detail,” which was absent here—especially given language suggesting that “everything” Marbury submitted was post-loss, despite her sworn claims about paying premiums/mortgage and furnishing the property with personal funds.
  4. The Fifth Circuit again refuses to decide factual sufficiency “in the first instance.”
    As in Marbury I, the court declined to determine whether Marbury’s sworn testimony ultimately creates a genuine factual dispute on insurable interest. Instead, it remanded for the district court to apply the correct framework (including assessing whether the testimony is too conclusory/vague) and to comply with the prior remand’s approach.
  5. Procedural side-issues did not warrant reversal.
    The panel rejected Marbury’s challenges to the late filing and the denial of her motion to strike, relying on the district court’s broad discretion (Hetzel v. Bethlehem Steel Corp.) and the absence of “substantial prejudice” (Huynh v. Walmart Inc.).

3.3. Impact

Although the decision is not designated for publication, its reasoning reinforces and operationalizes existing Fifth Circuit doctrine in a way that is likely to matter in practice—especially in insurance disputes where economic-interest proof may be informal or not perfectly documented.

  • Stronger guardrails against “corroboration-by-document” requirements at summary judgment.
    The opinion signals that district courts may not require independent documentary proof as a prerequisite to crediting sworn testimony, particularly where the testimony is based on personal knowledge and contains concrete factual assertions. This can affect cases involving cash payments, informal family or organizational arrangements, and faith-based or nonprofit property use—contexts where formal documentation can be incomplete.
  • Heightened emphasis on explicit evidentiary analysis.
    The remand underscores that courts must say why an affidavit is inadequate (e.g., it is conclusory, vague, internally inconsistent, lacks personal knowledge, or is inadmissible). Appellate review will be skeptical where an order discusses documents in detail but largely omits the sworn narrative.
  • Practical effects in Louisiana “insurable interest” litigation.
    By reaffirming Marbury I’s Louisiana standard (economic exposure to “direct, immediate or potential financial loss”), the case may encourage litigants to frame insurable interest around financial risk and investment rather than title alone—while also warning that the sufficiency of testimonial proof must be analyzed under Rule 56 standards rather than dismissed as “self-serving.”
  • Incentives for careful drafting of affidavits.
    The court’s repeated references to conclusoriness/vagueness encourage parties to provide detail: dates, amounts, payees, purpose of payments, and the mechanism by which the affiant becomes economically exposed (e.g., personal liability, reimbursement expectations, regular practice). The opinion makes clear that detail is the currency of survivability at summary judgment.

4. Complex Concepts Simplified

  • “Insurable interest” (Louisiana context)
    You do not always need to own property to insure it. You need a real financial stake such that, if the property is damaged, you would suffer financial loss (now or potentially). The Fifth Circuit (via Marbury I and Armenia Coffee Corp. v. Am. Nat'l Fire Ins. Co.) frames this as exposure to “direct, immediate or potential financial loss.”
  • “Summary judgment”
    A case can be decided without trial only if there is no genuine dispute of material fact. At this stage, the court must not decide who is more believable; it asks whether evidence exists that could allow a reasonable factfinder to rule for the nonmoving party.
  • “Self-serving” testimony
    Testimony can be self-interested and still count. Courts may disregard it only if it is too conclusory (“I paid everything” with no specifics), too vague, not based on personal knowledge, or otherwise incompetent. The key is whether the testimony contains concrete, admissible facts.
  • “Conclusive/vague affidavit”
    An affidavit that states only bottom-line conclusions—without who/what/when/how much—may be insufficient. But specific sworn facts can create a triable issue even if no documents back them up.
  • “VACATE and REMAND”
    The appellate court nullifies the judgment (vacate) and sends the case back (remand) for further proceedings under the correct legal framework.

5. Conclusion

The Fifth Circuit’s second remand in Marbury v. United National Insurance Company cements a procedural rule with substantive bite: when “insurable interest” turns on the insured’s economic stake, district courts cannot sidestep sworn affidavit/deposition testimony by labeling it “self-serving” or by demanding documentary corroboration. If a court believes such testimony is inadequate, it must say why—by analyzing whether it is conclusory, vague, or otherwise incompetent—and it must explain its summary-judgment reasoning with sufficient detail to permit meaningful appellate review. The decision thus reinforces the Fifth Circuit’s insistence that Rule 56 be applied as a fact-dispute filter, not as a credibility contest.