What Is a Full and Final Release in an Ontario Settlement?

You've reached a number everyone can live with, and now there's a document to sign before any money changes hands: a full and final release. It's easy to treat this as a formality after the real negotiating is done, but the release is where the deal actually becomes permanent — and its wording, not just the settlement amount, determines exactly what you're giving up.

This guide explains what a release does, what's typically inside one, and what to check before you sign.

What a Release Actually Does

A release is a contract in which one party gives up their right to bring a claim — typically in exchange for a payment or some other promise from the other side. Once it's properly signed, it generally ends your ability to sue over the released claim, even if you later feel the settlement wasn't enough or new information comes to light.

That finality is the whole point of a release. Both sides are trading the risk and cost of continued dispute for certainty, and the release is the legal instrument that locks that trade in.

What's Typically Inside a Release

Most releases cover similar ground, though the specific wording varies enormously:

• The parties released — not just the person or company you sued, but often related people or entities too (affiliates, employees, officers, directors, insurers)
• The scope of claims released — sometimes limited to the specific dispute, sometimes drafted as "any and all claims, known or unknown," arising from a much broader set of facts
• Confidentiality terms — a requirement to keep the settlement, or its amount, private
• Non-disparagement terms — a promise not to make negative public statements about the other party
• A denial of liability — most releases state that payment isn't an admission of wrongdoing

Common Types of Releases

• Mutual release — both sides release each other, common where each had potential claims against the other.
• One-way release — only one party gives up claims; the other typically gives nothing but the payment or promise in return.
• Global release — covers all claims arising from the underlying relationship or events, known or unknown, not just the specific dispute that led to the lawsuit or negotiation.
• Limited release — confined to a specific claim or incident, leaving other, unrelated claims untouched.

The difference between a global and a limited release is often the single most consequential wording choice in the whole document.

Why You (Almost) Can't Reopen a Claim After Signing

Courts generally treat a properly signed release as final and enforceable, for the same reason they enforce contracts generally: both parties knew what they were agreeing to and received something of value in exchange. Discovering later that the claim was worth more than you thought, or that you were unhappy with how negotiations went, is generally not on its own a basis to undo a release you signed with a clear understanding of its terms.

That's exactly why the review stage — before signing, not after — is where the real protection lies.

Before You Sign — What to Check

• [ ] Does the release cover only this specific dispute, or "any and all claims, known or unknown"?
• [ ] Does it release just the other party, or also related people and companies?
• [ ] Does it cover future claims arising from the same facts, or only claims that already exist?
• [ ] Is there a confidentiality clause, and what exactly does it require you to keep quiet about?
• [ ] Is there a non-disparagement clause, and how broadly is it worded?
• [ ] Has a lawyer reviewed the exact wording — not just confirmed the settlement number?

When a Release Can Be Challenged

Releases are contracts, and like any contract, they can potentially be challenged on general contract-law grounds — for example, where there's evidence of fraud, misrepresentation, duress, or a fundamental mistake shared by both parties about a key fact underlying the deal. These challenges are difficult to succeed on and are the exception, not a routine safety net — courts generally hold parties to releases they've knowingly signed.

Frequently asked questions