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. A declaratory judgment can be filed when the validity a marriage is denied or doubted.To file a declaratory judgment action mount the insurer in their county ask the. Strategies for Declaratory. In response, the City filed a plea to the jurisdiction contesting the Court's subject matter jurisdiction of the action for declaratory judgment. The County Civil Courts Department serves as the clerks for the four statutory County Civil Courts at Law in Harris County. In the interim, the DOL filed an action in federal district court to collect the back pay award. Normally, in a declaratory judgment case the attorney will not need the employer's Form 1120 file or the employees' Form 1040 files. 1. The Texas Uniform Declaratory Judgment Act, Tex. (2) render a final judgment.