Strict Enforcement of Expert-Designation Deadlines in Wyoming Legal Malpractice: Pro Se Status Does Not Supply Good Cause or Excusable Neglect

Introduction

In Wendy R. Williams v. Richard Gage, Individually, and Richard Gage, P.C., 2026 WY 30 (Wyo. Mar. 5, 2026), the Wyoming Supreme Court affirmed summary judgment against a legal-malpractice plaintiff who failed to timely designate an expert witness as required by the district court’s scheduling order. The case arose from representation connected to the federal National Vaccine Injury Compensation Program, where Ms. Williams sought compensation for multiple sclerosis symptoms she attributed to hepatitis A/B vaccinations received in 2010 and 2011. She alleged her attorney, Richard Gage, committed malpractice primarily by failing to include the 2010 vaccination claim and by purportedly preventing “double recovery.”

The appeal presented three core issues: (1) whether the district court abused its discretion by denying post-deadline requests to extend expert and discovery deadlines; (2) whether summary judgment was proper in the absence of a plaintiff expert on standard of care and causation; and (3) whether alleged privacy violations could be raised for the first time on appeal.

Summary of the Opinion

The Court affirmed. It held that because Ms. Williams sought an extension after the expert-designation deadline elapsed, W.R.C.P. 6(b)(1) required her to show both good cause and excusable neglect, which she did not do—particularly because her motion lacked detail of diligent efforts to secure an expert. It further held that expert testimony was required to prove the legal-malpractice elements (standard of care, breach, and causation) given the technical nature of the underlying vaccine-injury litigation; without an expert, Ms. Williams could not carry her burden, making summary judgment appropriate. Finally, the Court declined to consider privacy-related arguments not raised in the district court.

Analysis

Precedents Cited

1) Extensions of time: abuse of discretion, “good cause,” and “excusable neglect”

  • Jacobson v. Cobbs, 2007 WY 99, ¶ 10, 160 P.3d 654, 657 (Wyo. 2007): supplied the abuse-of-discretion standard for rulings on motions for additional time.
  • Hale v. City of Laramie, 2025 WY 133, ¶ 19, 580 P.3d 516, 520 (Wyo. 2025), quoting Cornell v. Mecartney, 2025 WY 97, ¶ 15, 575 P.3d 349, 353 (Wyo. 2025): framed “judicial discretion” as sound judgment based on objective criteria and not arbitrary action.
  • Hutton v. Dykes, 2025 WY 94, ¶ 16, 575 P.3d 334, 341 (Wyo. 2025), quoting Holloway v. Hidden Creek Outfitters, LLC, 2025 WY 59, ¶ 30, 569 P.3d 756, 763 (Wyo. 2025): emphasized the appellate question is whether the trial court could reasonably reach its conclusion.
  • Federal persuasive authority on “good cause” and diligence: Utah Republican Party v. Herbert, 678 F. App’x 697, 700-01 (10th Cir. 2017) (citing Bishop v. Corsentino, 371 F.3d 1203, 1207 (10th Cir. 2004)) and quoting Gorsuch, Ltd., B.C. v. Wells Fargo Nat’l Bank Ass’n, 771 F.3d 1230, 1240 (10th Cir. 2014): used to explain “good cause” typically exists where the deadline cannot be met despite diligent efforts and circumstances are outside the movant’s control.
  • Wyoming’s “excusable neglect” strict standard: Weber v. McCoy, 950 P.2d 548, 553 (Wyo. 1997) (citing Whitney v. McDonough, 892 P.2d 791, 794 (Wyo. 1995)); RDG Oil & Gas, LLC v. Jayne Morton Living Tr., 2014 WY 102, ¶ 14, 331 P.3d 1199, 1202 (Wyo. 2014) (quoting Crossan v. Irrigation Development Corp., 598 P.2d 812, 813 (Wyo. 1979)); and Chevron U.S.A., Inc. v. Dep’t of Revenue, 2007 WY 62, ¶ 9, 155 P.3d 1041, 1043 (Wyo. 2007): collectively reinforced that “excusable neglect” is reserved for genuine emergencies or outside forces and is evaluated against what a reasonably prudent person would do under the circumstances.
  • The presumption supporting general trial-court findings: Whitt v. State ex rel. Wright, 2001 WY 128, ¶ 12, 36 P.3d 617, 621; and Bloedow v. Maes-Bloedow, 2024 WY 115, ¶ 42, 558 P.3d 576, 589 (Wyo. 2024): allowed the Supreme Court to presume the district court found no good cause/excusable neglect even without detailed reasoning.
  • Pro se litigants held to the same standard: Matter of GP, 679 P.2d 976, 984 (Wyo. 1984) (citing Suchta v. O.K. Rubber Welders, Inc., 386 P.2d 931, 933 (Wyo. 1963)): used to reject the notion that pro se status itself can establish good cause or excusable neglect.

2) Summary judgment framework and the prima facie burden

  • Hunter v. Universal Precast Concrete, Inc., 2025 WY 129, ¶ 19, 581 P.3d 686, 698 (Wyo. 2025) (citing Groff v. McKellar Tiedeken & Scoggin, LLC, 2025 WY 54, ¶ 14, 568 P.3d 1164, 1167 (Wyo. 2025)): restated de novo review and the Rule 56 standard.
  • Weir v. Expert Training, LLC, 2022 WY 44, ¶ 15, 507 P.3d 442, 447 (Wyo. 2022): supplied the familiar “no genuine issue of material fact” formulation.
  • Campbell v. Davidson, 2023 WY 100, ¶ 18, 537 P.3d 734, 741 (Wyo. 2023) (quoting Page v. Meyers, 2021 WY 73, ¶ 9, 488 P.3d 923, 926 (Wyo. 2021)): permitted affirmance on any legal ground supported by the record.
  • Burden shifting and prima facie showing: Chesapeake Expl., LLC v. Morton Prod. Co. LLC, 2025 WY 15, ¶ 29, 562 P.3d 1286, 1295; Kaufman v. Rural Health Dev., Inc., 2019 WY 62, ¶ 14, 442 P.3d 303, 307; Scranton v. Woodhouse, 2020 WY 63, ¶ 23, 463 P.3d 785, 790-91 (Wyo. 2020) (quoting Bear Peak Res., LLC v. Peak Powder River Res., LLC, 2017 WY 124, ¶ 27, 403 P.3d 1033, 1044 (Wyo. 2017)) and quoting Gowdy v. Cook, 2020 WY 3, ¶ 22, 455 P.3d 1201, 1207 (Wyo. 2020): supported the proposition that a movant may meet its summary-judgment burden by showing a lack of evidence on an essential element the nonmovant must prove.

3) Legal malpractice elements and the need for expert testimony

  • Elements of a legal malpractice claim: Kappes v. Rhodes, 2024 WY 43, ¶ 18, 547 P.3d 298, 305 (Wyo. 2024) (citing Tozzi v. Moffett, 2018 WY 133, ¶ 36, 430 P.3d 754, 764 (Wyo. 2018); Moore v. Lubnau, 855 P.2d 1245, 1248 (Wyo. 1993); and Dockter v. Lozano, 2020 WY 119, ¶ 28, 472 P.3d 362, 370 (Wyo. 2020)): anchored the three-part test—standard of care, breach, and legal causation of injury.
  • Standard of care phrased as that of a reasonable Wyoming lawyer: Scranton v. Woodhouse, 2020 WY 63, ¶ 25, 463 P.3d 785, 791 (Wyo. 2020) (citing Moore v. Lubnau, 855 P.2d at 1250).
  • Expert testimony generally required: Scranton v. Woodhouse, 2020 WY 63, ¶ 25, 463 P.3d at 791 (citing Moore v. Lubnau, 855 P.2d at 1249; Meyer v. Mulligan, 889 P.2d 509, 516 (Wyo. 1995)). The limited exception—when common sense suffices—came from Bevan v. Fix, 2002 WY 43, ¶ 40, 42 P.3d 1013, 1026 (Wyo. 2002).
  • “Case-within-a-case” causation and damages: Horn v. Wooster, 2007 WY 120, ¶ 9, 165 P.3d 69, 72 (Wyo. 2007) (and cited discussion at ¶ 15, 165 P.3d at 74): supported the requirement that the plaintiff typically must prove the underlying action would have succeeded but for the attorney’s negligence, and that damages correspond to what would have been recovered in the underlying case.

4) Issue preservation on appeal

  • Sharpe v. Evans, 2025 WY 70, ¶ 14, 570 P.3d 731, 736 (Wyo. 2025) (quoting Evans v. Sharpe, 2023 WY 55, ¶ 42, 530 P.3d 298, 312 (Wyo. 2023)) and quoting Stevens v. Governing Body of Town of Saratoga, 2025 WY 35, ¶ 62, 566 P.3d 166, 180 (Wyo. 2025): controlled the Court’s refusal to consider privacy-law arguments raised for the first time on appeal (absent jurisdictional or fundamental concerns).

Legal Reasoning

1) W.R.C.P. 6(b)(1) was applied in its two-step, post-deadline form. The Court focused on the timing: Ms. Williams sought more time to designate experts fourteen days after the deadline. Under W.R.C.P. 6(b)(1)(B), that meant she had to show both good cause and excusable neglect. Drawing from the Tenth Circuit’s diligence-oriented explanation of good cause and Wyoming’s strict excusable-neglect cases, the Court emphasized what Ms. Williams’s motion lacked: specifics about her efforts and why the deadline “cannot be met despite the movant’s diligent efforts.”

The Court accepted that her brother’s injury might explain delay in requesting an extension, but held it did not explain failure to comply during the months before the deadline. The Court likewise rejected pro se status as a stand-alone justification because Wyoming precedent holds self-represented litigants to the same standards as counsel.

2) Summary judgment followed from the evidentiary gap on essential malpractice elements. On Rule 56, the Court treated Mr. Gage’s motion as one highlighting an absence of evidence on elements Ms. Williams had the burden to prove. The Court then applied Wyoming malpractice doctrine: absent the narrow common-sense exception, expert testimony is typically required to establish the standard of care and (especially) causation. Because this dispute involved specialized questions—statutes of limitation in the vaccine program, “double injury” theory, and what a competent attorney should do in that regulatory context—the Court found it was not within lay common experience. Without an expert designation, Ms. Williams could not reach a jury on standard of care, breach, or “case-within-a-case” causation/damages; therefore, no genuine issue of material fact existed.

3) Privacy issues were unpreserved. The Court applied Wyoming’s preservation rule and declined review because the alleged privacy violations were not presented below and did not qualify as jurisdictional or “fundamental.”

Impact

  • Stricter practical enforcement of scheduling orders in malpractice cases. The decision underscores that missing an expert-designation deadline can be dispositive, and that after-the-fact extension motions must be supported with concrete evidence of diligence and the causal link between the emergency and the missed deadline.
  • Pro se litigants face the same procedural and evidentiary burdens. The Court’s reliance on Matter of GP and Suchta v. O.K. Rubber Welders, Inc. signals that self-representation does not relax Rule 6(b)(1) requirements or the expert-testimony expectations in technical malpractice litigation.
  • Expert testimony remains the norm for malpractice—especially causation. By emphasizing Scranton v. Woodhouse and Horn v. Wooster, the Court reinforces that plaintiffs generally must be prepared to prove a “case within a case,” a demanding burden that commonly requires specialized expert proof.
  • Appellate courts will not rescue unpreserved ancillary claims. The privacy discussion reflects a continuing refusal to consider new issues on appeal, even when a litigant frames them as serious procedural wrongs, absent the narrow “jurisdictional or fundamental” exception.

Complex Concepts Simplified

Scheduling order / expert designation deadline
A court-ordered calendar that sets firm dates for litigation steps (like naming expert witnesses). Missing these dates can bar the late evidence.
W.R.C.P. 6(b)(1) “good cause” vs. “excusable neglect”
If you ask for more time before the deadline, you generally must show “good cause.” If you ask after the deadline, you must show both “good cause” and “excusable neglect” (a strict showing that a reasonably prudent person could have missed the deadline due to a genuine emergency or outside force).
Summary judgment
A pretrial ruling that ends the case when evidence shows there is no real dispute over facts that matter under the law, so one side is entitled to win as a matter of law.
Legal malpractice “standard of care”
The baseline level of skill and diligence expected of a reasonable Wyoming lawyer in similar circumstances.
“Case within a case” (causation in malpractice)
The malpractice plaintiff must usually prove not only attorney error, but also that the underlying case would have succeeded (and yielded recovery) if the attorney had acted competently.
Preservation of issues
Appellate courts typically review only arguments presented to the trial court. New arguments raised for the first time on appeal are usually rejected unless they involve jurisdiction or a rare “fundamental” issue.

Conclusion

Williams v. Gage functions as a cautionary precedent on two fronts: (1) post-deadline extensions under W.R.C.P. 6(b)(1) require particularized showings of diligence, good cause, and excusable neglect—pro se status and generalized difficulty finding an expert do not suffice; and (2) in complex legal-malpractice disputes, failure to timely secure expert testimony on standard of care and causation will commonly be fatal at summary judgment. The decision also reiterates Wyoming’s firm issue-preservation doctrine, declining to address privacy-related claims not raised in the district court.