Mediation Settlement Enforceability and Confidentiality: Analysis of Recent Appellate Cases

ADR Case Law Update Spring 2026

Mediation Settlement Enforceability and Confidentiality: Analysis of Recent Appellate Cases

Three decisions from 2025–2026 clarify when a mediated settlement binds the parties — and when courts are barred from policing what happens inside the negotiating room.

DC Mediation & Dispute Resolution Institute Washington, DC April 2026

Executive Summary

In Maccarone v. Siemens (1st Cir. 2026), an oral settlement recited on the record was enforced even after the plaintiff refused to sign, and the case was dismissed under FRCP 41(b). In Schlecht v. Goldman (8th Cir. 2025), a signed mediation term sheet covering five essential terms was held binding; a later-added "non-reliance" clause was deemed boilerplate, not a new material term. In In re I.T. & E.T. (Tex. App. 2026), sanctions for "bad-faith" mediation were reversed — Texas law makes mediation communications, including negotiation style, strictly confidential, and parties cannot be punished for how they negotiate. Together, these cases confirm that intent, material terms, and clear expression of agreement control enforceability, while confidentiality rules sharply limit any judicial inquiry into what occurred at the table.

Case Summaries

1st Circuit

Maccarone v. Siemens, Inc.

No. 25-1219 (1st Cir. Jan. 29, 2026)

After court-ordered mediation resolved an FLSA wage dispute, the magistrate judge recited all settlement terms on the record and both counsel confirmed assent. When the plaintiff later refused to sign the written agreement, the defendant moved to enforce. The district court granted enforcement and — after continued non-compliance — dismissed the case under FRCP 41(b). The First Circuit affirmed on all points, emphasizing that "settlement agreements enjoy great favor" and that buyer's remorse cannot unwind a knowing, voluntary settlement.

Material Terms
Fixed payment; broad release of known & unknown claims; confidentiality; non-disparagement; dismissal with prejudice
Key Holding
Oral settlement is enforceable upon mutual assent to all material terms. Refusing to sign a written agreement does not void a deal already formed on the record.
Outcome
Enforced. Oral settlement upheld; 41(b) dismissal affirmed.
Governing Rule
No "subject to execution" language = immediate binding effect. Subjective post-hoc objections create no genuine factual dispute.

Procedural Timeline

March 6, 2024
Court-ordered mediation. Magistrate recites all terms on record; both counsel confirm assent.
May 2024
Plaintiff's counsel reports she will not sign the final written papers, citing pressure and ambiguities.
July 16, 2024
Siemens moves to enforce the oral settlement.
September 4, 2024
District court finds no factual dispute and enforces the oral agreement. Motions for evidentiary hearing and reconsideration denied.
February 6, 2025
Plaintiff still refuses to sign. Case dismissed with prejudice under FRCP 41(b).
January 29, 2026
First Circuit affirms enforcement and dismissal in full. Opinion unanimous.
8th Circuit

Schlecht v. Goldman

No. 24-2095 (8th Cir. Nov. 4, 2025)

An insurance agent sued his former insurer over a contract dispute. At mediation, the parties signed a written Settlement Term Sheet listing five material provisions. When defendants later circulated final documents that included a standard "non-reliance" clause, Schlecht refused to sign and moved to rescind, claiming the clause introduced an unagreed new term. The Eighth Circuit held the term sheet was fully binding and the non-reliance clause was immaterial boilerplate consistent with the release of unknown claims already agreed.

Five Material Terms
$10,000 payment; release of all known & unknown claims; confidentiality (subject to law); no disparagement; dismissal with prejudice
Key Holding
Key Holding
A signed term sheet is binding on its enumerated terms. Standard boilerplate added to final documents does not constitute a new material term where the term sheet expressly anticipated "standard language."
Outcome
Enforced. Term sheet held binding; non-reliance clause immaterial.
Key Principle
Intent is judged objectively. Signing and staying silent at mediation — without reserving any condition — manifests immediate binding assent.
Tex. App.

In re I.T. & E.T., Children

No. 10-25-00123-CV (Tex. App.–Waco, June 16, 2026)

In a CPS child-protection case, court-ordered mediation ended without resolution. Both parents moved for sanctions against the Department of Family and Protective Services, alleging it participated in bad faith by refusing to negotiate anything other than termination of parental rights. The associate judge sanctioned the Department after receiving a mediator statement and hearing testimony about offer history. The Waco Court of Appeals reversed all sanctions, holding that the Texas ADR Act's confidentiality provisions preclude any judicial inquiry into how parties negotiate.

Central Issue
Whether a trial court may sanction a party for "bad faith" negotiation when no settlement was reached and the basis for sanctions was mediation communications.
Key Holding
Tex. Civ. Prac. & Rem. Code §154.073 makes all mediation communications inadmissible. The manner of negotiation — including number of offers made — is protected. Courts have no authority to police negotiating posture.
Outcome
Sanctions reversed. All attorney's fees and cost awards vacated. Department's sole issue sustained.
Key Statute
§154.073(a): evidence of anything said or any admission made in the course of mediation is inadmissible. Applies even to mediator statements submitted to the court.

Cross-Case Analysis

Oral vs. Written Agreements
Both federal courts enforced settlements without a fully executed written contract. An oral agreement is binding if all material terms are clearly agreed and no party conditions finality on a writing. The absence of "subject to execution" language is decisive — courts treat silence as immediate binding intent.
What Counts as "Material"?
Courts determine materiality by context. Payment amount, scope of release, dismissal, and confidentiality are consistently treated as material. Standard boilerplate — integration clauses, non-reliance provisions, choice-of-law — generally is not, particularly where the term sheet anticipated such language.
Confidentiality's Reach
Texas and California enforce strict confidentiality covering not just what parties say, but how they negotiate. Courts cannot use mediation statements to sanction conduct, assess credibility, or award fees — absent a narrow statutory exception. This is not a technicality; it is structural protection for the process itself.
Sanctions for Mediation Conduct
Asking a Texas court to sanction an opponent for mediation tactics is effectively foreclosed under current law. Even in jurisdictions with "good faith" requirements, confidentiality rules often block the evidentiary basis for such motions. Returning to the merits is almost always the better course.
Intent Is Judged Objectively
In both federal cases, stated assent, signing the term sheet, or failing to reserve approval showed immediate binding intent. Post-hoc claims of pressure, ambiguity, or misunderstanding — raised only after the party had time to reconsider — were rejected as "buyer's remorse."
No Circuit Split
All principles applied in these decisions are well-established across circuits. The 1st, 2nd, 3rd, 7th, and 8th Circuits routinely enforce fully agreed mediated settlements without requiring formal execution. Courts are reluctant to let dissatisfied litigants exit agreements they knowingly made.

Case Comparison

Case Court Material Terms Outcome Confidentiality / Sanctions
Maccarone v. Siemens
1st Cir. 2026
Federal (R.I.) Payment; broad release; confidentiality clause; non-disparagement; dismissal Enforced
41(b) dismissal affirmed
Confidentiality was a deal term, not a litigation issue. No sanctions.
Schlecht v. Goldman
8th Cir. 2025
Federal (Mo.) $10k payment; release; confidentiality; no disparagement; dismissal Enforced
Non-reliance clause immaterial
No breach or sanctions issue. Boilerplate did not alter the deal.
In re I.T. & E.T.
Tex. App. 2026
State (Tex.) No settlement reached Sanctions reversed
No authority to penalize negotiation style
§154.073 confidentiality controls. Manner of negotiation fully protected. Mediator statement held inadmissible.

Practical Guidance for Mediators and Counsel

1 Record all agreed terms on the record

When parties reach agreement, the mediator or presiding judge should enumerate each material term clearly. Both counsel — and ideally the clients — should confirm each term aloud. Any reservation of approval must be stated at that exact moment, not days later.

Sample Language"All parties agree to these terms as stated and intend to be bound immediately, subject only to the drafting of formal documents consistent with them."
2 Label your term sheet clearly

A written term sheet is valuable precisely because it reduces disputes about what was agreed. Label it explicitly — "Binding Term Sheet" or "Non-Binding Outline" — depending on intent. If binding, include all essential terms and note that final documents will contain standard consistent language.

Sample Language"This Term Sheet constitutes a binding agreement on the material terms listed below. The parties will promptly execute a formal settlement agreement reflecting these terms and containing standard boilerplate provisions consistent herewith."
3 State any reservation of rights immediately

If any party genuinely needs board approval, client sign-off, or further review before settlement is final, that condition must be stated at the time of the tentative agreement. Without it, courts presume immediate binding intent.

Sample Language"Each party's obligations under this term sheet are subject to final review and written approval by its principal within [X] business days of the date of this agreement."
4 Anticipate standard boilerplate in advance

As Schlecht illustrates, a party who objects to integration or non-reliance language after the fact will rarely succeed. The better practice is to flag such clauses proactively during mediation — or to note in the term sheet that final documents will include standard integration language — to foreclose later objection.

5 Respect confidentiality — and warn clients about it

Before mediation, counsel should review jurisdiction-specific confidentiality rules with clients. In Texas, virtually all mediation communications are protected. Raising mediation conduct in open court — whether to support a sanctions motion or for any other purpose — risks both procedural defeat and professional embarrassment.

6 Think carefully before seeking sanctions for mediation conduct

In Texas, sanctioning a party for negotiation style is effectively impossible under current law. Even where "good faith" obligations exist in other states, confidentiality rules usually block the evidentiary basis for any such motion. If a party truly fails to appear, narrowly targeted relief may be available — but sanctions for content of negotiation rarely are.

Best Practices Checklist

  • Ensure every material term is enumerated on the record. Confirm aloud: "Is that correct, each term as stated?"
  • State binding intent explicitly. If parties intend immediate finality, say so. If approval is needed first, say that instead.
  • Label term sheets clearly: "Binding" or "Non-Binding." Ambiguity invites litigation.
  • Flag standard integration and non-reliance clauses to opposing counsel before final documents are circulated.
  • Review jurisdiction-specific confidentiality rules with clients before mediation begins.
  • Do not ask a court to sanction the other side for mediation tactics unless a clear statutory exception applies and extreme misconduct occurred.
  • After a failed mediation, report only the outcome (settled / not settled) to the referring court — consistent with mediator confidentiality obligations.
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Berk v. Choy: What the Supreme Court's Ruling Means for Your Mediation Practice