The mother has sent the paper work to the father to sighn off on his rights to the child that he has not been allowed to see him in seven years and ha

The answer to this question depends upon whether or not Mom and Dad have an existing case.  If they do, then the matter should be handled in the existing Court.  If not, jurisdiction needs to be determined before moving forward.  In any case, Dad needs to review the Indiana relocaiton statute that also applies here:  https://codes.findlaw.com/in/title-31-family-law-and-juvenile-law/in-code-sect-31-17-2-2-1.html.   If he wants to establish his parental rights and obligaitons or has already done so and just needs to request enforcement of the Order, he should not wait.  Litigant rescources are avaiilable at every courthouse Clerk's Office, or you may choose to contact an attorney to help you.