- A release is a contract in which one party — or both, in a mutual release — gives up the right to bring certain claims against the other.
- - Claims arising from the specific dispute that led to the settlement — this is the core of what any release covers - Known claims — issues the parties were aware of and specifically had…
Settling a dispute usually means signing a release, and the release is often the most important document in the whole settlement — more important, in a real sense, than the settlement amount itself. A full and final release in Ontario is designed to end the dispute permanently, but "full and final" doesn't always mean "absolutely everything, forever." Understanding what a release actually covers, and what it typically doesn't, matters before you sign one.
This guide explains what's usually inside a full and final release, what commonly survives it, and what to check before you put your signature on one.
What a Release Is Designed to Do
A release is a contract in which one party — or both, in a mutual release — gives up the right to bring certain claims against the other. Once validly signed, a release is generally intended to be a complete bar to raising those claims again, including in a future lawsuit, which is why courts take releases seriously and don't set them aside lightly.
A release is usually the final piece of a broader settlement, signed alongside — or shortly after — the payment or other terms the parties agreed to. It is worth reading with the same care you'd give any other contract, since its wording, not the settlement conversation that preceded it, is what a court will look to later.
What's Typically Covered
- Claims arising from the specific dispute that led to the settlement — this is the core of what any release covers
- Known claims — issues the parties were aware of and specifically had in mind
- Unknown claims, if the release contains express "unknown claims" waiver language — many releases are deliberately drafted broadly enough to cover claims neither party realized existed at the time
- Claims against related parties named or defined in the release, for example a company and its individual employees or directors, if the release is drafted to extend to them
What Commonly Doesn't Survive vs. What Often Does
| Typically Released | Often Survives a Release |
|---|---|
| The specific dispute or transaction the settlement addresses | Obligations created by the settlement agreement itself — the promises the parties are making to each other going forward |
| Known claims connected to that dispute | Claims that are entirely unrelated to the dispute being settled, unless the release is drafted broadly enough to cover them |
| Unknown claims, if the release expressly says so | Certain statutory rights that generally cannot be waived by private agreement |
| Claims against parties named in the release | Fraud that induced the settlement itself, in some circumstances |
Mutual vs. One-Way Releases
A mutual release has both sides giving up claims against each other, which is common where liability or fault is genuinely disputed on both sides. A one-way release has only one party giving up claims, typically where one side is paying money and wants certainty that the other side won't come back with more claims later, without needing anything released in return. Which structure applies is a negotiating point, not a legal default.
Before You Sign: What to Read Carefully
- [ ] Does the release name every party you want covered, including related companies or individuals?
- [ ] Does it include "unknown claims" language, and are you comfortable giving up claims you don't yet know about?
- [ ] Are there carve-outs for specific claims you want to preserve?
- [ ] Does it clearly state whether it's mutual or one-way?
- [ ] Does the release conflict with, or override, any ongoing obligations in the settlement agreement itself?
Frequently asked questions
If I sign a release, can I still sue over something completely unrelated later?
Generally yes, if the release is limited to the specific dispute being settled and doesn't contain broader language. This is exactly why reading the scope of the release — not just the settlement amount — matters so much.
What does "waiver of unknown claims" actually mean?
It means you're giving up not just the claims you know about, but claims connected to the dispute that you don't yet know exist. It's a deliberately broad protection for the other party, and worth understanding before you agree to it.
Can a release cover claims against people who aren't part of the lawsuit?
Yes, if the release is drafted to include them by name or by a defined category, such as "affiliates, directors, and employees." A release only protects the parties and categories it actually names or defines.
Does signing a release mean I admit I was wrong?
Not necessarily. Settlements and releases are routinely used without either party admitting fault, and most releases are drafted specifically to avoid any admission of liability.
This is a litigation question
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