A plaintiff seeking a preliminary injunction must establish that he is (1) likely to succeed on the merits, (2) that he is likely to suffer irreparable harm. The plain language of the statute seems to allow invoking the Act in a will contest since the validity of the testamentary instrument is in.This Appendix provides a summary of cases in which state issued declaratory judgments in family law related matters. A declaratory judgment is a binding judgment from a court defining the legal relationship between parties and their rights in a matter before the court. No action or proceedings shall be open to objection on the ground that a declaratory judgment or decree is prayed for. The debates over whether a purely declaratory judgment. You can bring a declaratory judgment action to make them fulfill the terms in their insurance policy if you think that they denied you.