Although it may seem like you cannot file a personal injury lawsuit if you signed a waiver releasing the other party from liability, in many cases it is still possible to file a claim for negligence. In many cases, a waiver is found by the court to be unenforceable. Even where a waiver may be enforceable, they are intended to inform you of possible harms and obtain your acknowledgement that harm may occur; however, they are not intended to serve as a loophole if the other party commits an act of negligence.