In re Estate of Knapp: Missing Cross-Referenced Prenuptial Term Is an Omission (Reformation), Not an Ambiguity; Oral 60/40 “Estate Plan” Unenforceable Without Clear Contract and Solely-Referable Part Performance

1. Introduction

In re Estate of Knapp (321 Neb. 155, filed Apr. 3, 2026) is a Nebraska Supreme Court decision arising from a probate dispute between Barbara Knapp (surviving spouse and claimant) and Lance Knapp (personal representative and decedent’s child). Barbara sought (1) 40% of the proceeds from the sale of the couple’s marital residence and (2) a statutory maintenance fund, grounding both claims in a written premarital agreement that referenced a non-existent “Article 9.4,” and alternatively in a later oral “60/40” arrangement allegedly reiterated over the years.

The key legal issues were:

  • Whether a premarital agreement’s cross-reference to a non-existent section creates an ambiguity permitting extrinsic evidence to supply its meaning.
  • Whether the missing reference could be treated as an enforceable exception preserving claims to the residence, a maintenance fund, or both.
  • Whether an alleged oral agreement to transfer an interest in land at death is enforceable via specific performance under the part-performance doctrine.

2. Summary of the Opinion

The Supreme Court affirmed the county court’s disallowance of Barbara’s claims. It held:

  • The premarital agreement was not ambiguous merely because it referenced a non-existent “Article 9.4”; the problem was an omitted term, not competing plausible interpretations.
  • The appropriate doctrinal frame for an omitted contractual provision is reformation, but Barbara failed to prove by clear and convincing evidence that the omission was due to mutual mistake or fraud, or that the parties had actually agreed to the terms she sought to add.
  • The phrase “except for ... provisions ... as set forth in Article 9.4” did not create a free-standing exception for a maintenance fund when the referenced “provisions” were absent.
  • The alleged oral 60/40 arrangement was not enforceable as a contract to convey land at death because Barbara did not prove (a) clear, satisfactory, and unequivocal terms of an oral contract and (b) part performance solely referable to that contract.

3. Analysis

A. Precedents Cited

  • White v. White (316 Neb. 616, 6 N.W.3d 204 (2024))
    Used for the standard that contract meaning is a question of law reviewed independently on appeal—supporting the Court’s willingness to reject the “ambiguity” characterization notwithstanding the trial court’s contract interpretation.
  • Eggers v. Rittscher (247 Neb. 648, 529 N.W.2d 741 (1995))
    Cited for two critical points: (1) an action to compel specific performance of an oral contract to devise real property is equitable and reviewed de novo; and (2) the long-standing two-part test requiring proof of a clear oral contract and part performance solely referable to it. The Court treated Eggers as the modern articulation of Nebraska’s strict evidentiary demands in post-death oral contract claims.
  • Dirt Road Development v. Hirschman (316 Neb. 757, 7 N.W.3d 438 (2024))
    Supplied the Court’s definition of “ambiguity” (semantic dichotomy yielding multiple plausible meanings). This precedent provided the conceptual hinge for the Court’s holding that a missing cross-referenced section is not “ambiguous”—it is absent.
  • In re Estate of Wiggins (314 Neb. 565, 992 N.W.2d 429 (2023))
    Invoked for reformation principles: reformation corrects an instrument that fails to reflect the parties’ actual agreement due to mutual mistake or fraud. Wiggins anchored the Court’s reframing of Barbara’s argument from “ambiguity” to “reformation,” thereby raising the evidentiary bar.
  • Jelsma v. Acceptance Ins. Co. (233 Neb. 556, 446 N.W.2d 725 (1989))
    Cited with Wiggins for the same reformation doctrine—supporting the proposition that courts may correct instruments to express true intent, but only under the doctrine’s narrow conditions.
  • Haines v. Mensen (233 Neb. 543, 446 N.W.2d 716 (1989)) and Newton v. Brown (222 Neb. 605, 386 N.W.2d 424 (1986))
    These cases supplied the heightened burden: mutual-mistake reformation requires clear and convincing evidence of the mistake in the instrument. They were key to the Court’s conclusion that even if “Article 9.4” was unintentionally missing, the record did not satisfy the reformation standard.
  • In re Estate of Layton (212 Neb. 518, 323 N.W.2d 817 (1982)); Busteed v. Sheffield (153 Neb. 253, 44 N.W.2d 471 (1950)); Overlander v. Ware (102 Neb. 216, 166 N.W. 611 (1918), supplemented by 103 Neb. 375, 171 N.W. 901 (1919))
    Cited as the historical lineage for Nebraska’s strict approach to specific performance of oral land-transfer agreements with decedents. Their collective influence is to reinforce that such claims are disfavored absent unmistakable proof and unequivocal, contract-specific performance.
  • Morris v. Dall (320 Neb. 122, 26 N.W.3d 304 (2025))
    Used for basic contract formation principles (offer/acceptance; mutuality of obligation). This supported the Court’s conclusion that proof of decedent intent is not proof of a contract, and that Barbara failed to clearly prove her own contractual obligation.

B. Legal Reasoning

1) “Non-existent Article 9.4” did not create ambiguity

The Court drew a sharp doctrinal line between:

  • Ambiguity: existing language susceptible to two or more plausible meanings; and
  • Omission: missing language that is not present to interpret at all.

Because “Article 9.4” contained no text and the cross-reference itself presented no competing meanings, there was no “semantic dichotomy.” Barbara’s desired remedy—supplying substantive terms (40% residence proceeds; maintenance fund)—was therefore treated as a request for reformation, not interpretation.

2) Reformation failed for lack of clear and convincing proof

Under Nebraska reformation doctrine, the Court required proof that the parties had actually reached an agreement on the missing provisions and that the written instrument failed to reflect it due to mutual mistake or fraud. The Court relied heavily on Barbara’s own testimony that the “60/40” concept was not firmly reached until after the premarital agreement (around the sale of her house in 2017). That timing undermined the idea that “Article 9.4” was intended to memorialize a 60/40 residence division at execution in September 2016.

With no documentary trail (and no evidence of mistake beyond the existence of the faulty cross-reference), the record did not satisfy the clear and convincing standard required to reform the agreement.

3) The “maintenance fund” reference did not preserve a standalone claim

The agreement stated the survivor had no claim “[e]xcept for ... the provisions regarding the personal residence, maintenance fund, and vehicle as set forth in Article 9.4.” The Court read this as a dependent clause: the exception existed only if “Article 9.4” actually set out operative provisions. Because no such provisions appeared in the contract, the clause did not itself create an enforceable maintenance-fund entitlement.

4) The oral “60/40” arrangement did not satisfy the part-performance pathway to specific performance

Recognizing that land transfers generally require a writing, the Court addressed the equitable doctrine allowing specific performance upon part performance. Applying the Eggers line of cases, the Court held Barbara failed on both prongs:

  • Clear, satisfactory, unequivocal terms: The record showed repeated expressions of Paul’s wishes, but the Court found insufficient proof of a complete contract (including Barbara’s definitive obligations) rather than a testamentary intention.
  • Performance solely referable: Barbara’s expenditures and financial participation could be explained by other relationships and arrangements: marital living expenses; a prior documented loan repaid by Paul; and home-improvement spending consistent with cohabitation rather than a bargain to convey an interest in land.

The Court’s reasoning also emphasized contract fundamentals: without clear evidence of an offer, acceptance, and mutuality of obligation, “intent” remains nonbinding—particularly where the decedent did not execute a new will or deed despite time and opportunity.

C. Impact

  • Drafting and litigation of premarital agreements: The decision discourages attempts to convert a defective cross-reference into an “ambiguity” that opens the door to extrinsic supplementation. Parties seeking to “fill in” missing prenuptial terms must plead and prove reformation with the attendant clear-and-convincing burden.
  • “Except for ... as set forth in ...” clauses: The Court’s textual approach warns drafters that exceptions dependent on another section will likely fail if that section is missing; courts will not treat the exception header as self-executing substantive rights.
  • Estate planning and reliance on oral understandings: The opinion reinforces that repeated statements of intent—even to multiple witnesses—are not substitutes for a will or deed, and that equity will not readily enforce post-death oral claims to land absent unmistakable contractual proof and unequivocal performance.
  • Probate disputes involving blended families: The case highlights the heightened evidentiary skepticism applied when a surviving spouse asserts oral bargains that would alter a decedent’s longstanding estate plan benefiting children from a prior marriage.

4. Complex Concepts Simplified

  • Ambiguity (contract): Words are ambiguous when they reasonably mean two different things. A missing paragraph is not “ambiguous”; it is absent.
  • Reformation: A court “fixes” a written contract to match what the parties actually agreed to, but only if strong proof shows the writing is wrong because of mutual mistake or fraud.
  • Specific performance: A remedy ordering someone (or an estate) to carry out a contract—often used for real estate because each parcel is considered unique.
  • Part performance (statute of frauds exception): Even if land contracts must be in writing, a court may enforce an oral agreement when the claimant’s actions unmistakably show the contract existed and those actions make sense only because of that contract—not for any other reason.
  • Mutuality of obligation: A contract normally requires obligations on both sides; one party’s stated intention, standing alone, is not a binding exchange.

5. Conclusion

In re Estate of Knapp clarifies that a premarital agreement’s reference to a non-existent section is not an interpretive ambiguity but an omitted term, making reformation—with its clear-and-convincing evidentiary burden—the proper (and difficult) path. It also reaffirms Nebraska’s strict approach to enforcing alleged oral arrangements to transfer land at death: repeated testamentary statements are not enough without a clearly proven contract and performance solely referable to that bargain. The decision ultimately underscores a practical rule with legal bite: if a decedent wants a different result, the will (or deed) must be updated to match that intent.