From the Mediation Table to a Court Order: Making Settlement Stick

Reaching agreement at mediation is not always the end of the dispute. Sometimes it is only the beginning of the next one.

The parties shake hands, sign a mediated settlement agreement, and leave believing the case is resolved. Then someone circulates a more formal settlement agreement or release. New language appears. One side says the new document merely memorializes the deal. The other says the deal was never final until the new document was signed.

What was supposed to be the end of litigation becomes litigation over the settlement.

A recent Illinois appellate decision (Mattea v. Mattea, 2026 IL App (5th) 250372-U, 2026 WL 2629722 (Ill. App. Ct. 5th Dist. Sept. 4, 2026)) provides a useful reminder of how courts may approach that problem. The lesson is straightforward: if the parties sign a mediated settlement agreement containing the essential terms of their deal, the fact that they contemplated a later, more formal document does not necessarily mean the settlement was conditional or incomplete.

And once the settlement is found enforceable, a court can convert it into an order and require the parties to carry it out.

The Settlement Was Reached at Mediation

The case arose from several related disputes among family members. After substantial litigation, the matters were referred to mediation.

At the conclusion of the mediation, the parties executed a mediated settlement agreement. The agreement expressly stated that the parties would later enter into a “more formal and complete settlement document and release,” but it also acknowledged that the mediated settlement agreement contained “all the essential terms of settlement between the Parties.”

That language became critical.

The mediated agreement also contained a broad release of claims and provided that the parties would use their best efforts to finalize the settlement documents, release, and transfer of assets. In other words, the parties plainly anticipated additional paperwork. But they had also documented the substance of the bargain before leaving mediation.

The problems began afterward.

One side circulated a more expansive global release. The parties could not agree on its language. Eventually, a motion was filed to enforce the mediated settlement agreement.

A Later Formal Document Does Not Necessarily Mean the First Agreement Was Preliminary

This distinction is important for lawyers and clients.

There is a difference between agreeing that a settlement will not become binding until a later document is signed and agreeing on a binding settlement while leaving the lawyers to prepare documents that implement it.

Those are very different things.

In this case, the appellate court emphasized that the mediated settlement agreement did not say the settlement was contingent on execution of a later release. Quite the opposite: the agreement said it already contained the essential settlement terms.

The parties’ stated intention to later prepare a more formal document therefore did not transform the signed mediated agreement into a mere negotiation outline.

The appellate court relied on familiar contract principles. A settlement agreement is a contract. Once there is an offer, acceptance, consideration, and mutual assent to the essential terms, the parties generally have a deal.

The fact that the lawyers intend to prepare a longer document later does not necessarily change that.

As the Illinois court explained through prior precedent, even where parties contemplate a written release or other formal settlement document, execution of that later writing need not be a condition precedent to formation of a binding settlement. A settlement becomes effective when agreement is reached unless the parties expressly make its effectiveness contingent on some later event.

That principle has an obvious application in mediation. If the parties want the mediation document to be binding, say so. If they do not want it to become binding until a later document is signed, say that instead. Ambiguity invites trouble.

The Danger of “We’ll Work Out the Language Later”

Mediators and lawyers hear some version of this regularly: “We have the deal. We’ll let the lawyers work out the release.” Sometimes that works perfectly. Sometimes the release becomes the next battleground.

The difficulty is that a release can involve much more than stylistic drafting. The parties may disagree over who is released, which claims are released, whether unknown claims are included, whether affiliates or related entities are covered, whether confidentiality or non-disparagement language applies, and whether obligations extend beyond the parties who participated directly in the mediation.

A settlement that appears complete at 6:00 p.m. can look much less complete when someone circulates a twelve-page agreement the next morning. That is why the short document signed at mediation matters so much.

The mediated agreement should do more than say, “Case settled.” It should identify the material terms clearly enough that the later document truly is implementation rather than a new negotiation.

The Illinois case illustrates that point well. The mediated agreement itself addressed the release and stated that claims were released. The later formal release was therefore not creating the settlement; it was intended to document and implement one that already existed.

Turning the Settlement Into a Court Order

The second important feature of the case is what happened next.

After hearing the parties’ arguments, the trial court found that the mediated settlement agreement was enforceable. The court noted that the parties agreed on the terms of the mediated settlement agreement and that the remaining disagreement concerned the language of the formal settlement document and release.

The court then did something important: it attached the mediated settlement agreement to its order, declared it to be an order of the court, required the parties to comply with it, and directed them to execute whatever additional documents were necessary to implement its terms.

That step changed the character of the dispute.

The parties were no longer merely arguing about whether one side had breached a private contract. They were dealing with an existing court order requiring performance.

Several years later, when one party still had not complied, the trial court entered a global release and again ordered compliance. The appellate court upheld that action, noting the court’s inherent authority to enforce its own orders.

That offers an important practical lesson.

When litigation settles through mediation, counsel should think beyond simply obtaining signatures. If appropriate, the parties should promptly advise the court that the case has settled and consider whether the court should enter an order enforcing or incorporating the agreement, particularly where significant obligations remain to be performed.

The objective is not to invite continuing judicial involvement unnecessarily. It is to avoid having the settlement fall into a procedural gray area if one side later refuses to perform.

Draft the Mediation Agreement With Enforcement in Mind

The best time to think about enforcement is before anyone leaves the mediation.

A mediated settlement agreement should identify the essential business and legal terms with enough specificity that a court can determine what the parties agreed to without reconstructing negotiations months or years later.

That may include payment terms, timing, releases, dismissal obligations, transfers of property, confidentiality, non-disparagement, tax treatment, lien resolution, attorney’s fees, responsibility for drafting final documents, and what happens if the parties cannot agree on implementing language.

Counsel should also decide what the settlement document itself is intended to be. Is it a binding settlement agreement immediately upon execution? Or is it only a memorandum of proposed terms that will not become effective until a formal agreement is signed? Both approaches can be legitimate. What creates problems is failing to say which one the parties intend.

If the agreement is binding immediately, language similar to that used in this case can be helpful: the document contains all essential terms, and any later agreement merely memorializes or implements them.

If the parties truly intend that no binding agreement exist until a formal document is executed, that should be stated just as clearly.

Do Not Let the Release Reopen the Negotiation

There is another practical lesson for lawyers preparing the final paperwork. A post-mediation settlement document is usually supposed to document the bargain, not improve it. That sounds obvious, but it is a frequent source of difficulty.

The temptation is understandable. Once counsel returns to the office, someone notices a provision that could have been better. Another protection would be helpful. A broader release would be preferable. A confidentiality provision would be useful. Perhaps an indemnity clause should be added.

But there is a difference between filling in necessary implementation details and adding material terms that were never negotiated.

When the latter occurs, the final drafting process can become a second negotiation. And when that happens, a party may mistakenly conclude that disagreement over the new language means there was never a settlement in the first place.

This case demonstrates why that assumption can be dangerous.

The court may instead conclude that the first agreement was already binding and that the dispute over later language does not undo it.

A Mediated Settlement Should End the Case

The purpose of mediation is resolution. A mediated settlement agreement should therefore be drafted with one overriding objective: make certain the parties know what they agreed to and what happens next.

The safest approach is not necessarily to draft a twenty-page settlement agreement in the mediation room. Often that is impractical and counterproductive.

But the agreement signed before everyone leaves should capture the essential terms, state whether it is presently binding, address the status of any future documentation, and make clear whether a later release or formal agreement is merely implementing the settlement or is a condition to its existence. Then the lawyers should complete the formal documents promptly.

And where the circumstances warrant it, counsel should consider converting the settlement into an enforceable court order rather than leaving an unresolved settlement lingering on the docket while the parties continue negotiating implementation details.

A successful mediation should not create another lawsuit over whether the mediation was successful. The objective is to leave the mediation with a deal that can survive the drafting that follows.

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