No, that is not true, or at least not entirely. You can't sign away your right to file a complaint, sue, or take legal action for violations of labor/employment law (e.g. overtime law), employment discrimination law, or for deliberately wrongful, harmful, or criminal acts, because public policy does not let you give up these rights in advance...but you *can* give up your right to sue for run of the mill accidents, negligence, or injuries Giving up the right to sue for common, everyday injuries is itself fairly common: e.g. any liability waivers for skiing, amusement parks, bungie jumping, etc.