Site: nolo.com
... signing based on misrepresentation, and provides each party with some benefit (e.g., if you pay me $500, I ... A statement that the release applies to all claims arising from the dispute or issue, both those known ... only the person granting a release needs to sign it, but it is a better practice for both parties to do ... If your release involves a small claim, doing this is unnecessary. ... Especially if you suspect that the other side may not do what they promise, it is worth the extra effort ...