If one was a well-documented and substantiated understanding of the federal and state regulations that CA or a CRA is violating, a lawyer is only going to help your case. Although with pre-paid legal -- which is a scam, much like insurance to me -- they won't be representing you in small claims court should you go, or in federal court if you have to go there, too.
All that said, it's not going to hurt. Filing a law suit will get people to act, if not right, at least act as oppose to ignoring you and continuing to defame your credit and reputation.