This page from TexasLawHelp. These forms allow parents, families, and employers to provide the Child Support Division with additional information so we can better serve you.The answer is yes, as the State of Texas has established a robust system to ensure that children receive the financial support they need. Yes, it is, to ensure the financial welfare of children. This legal requirement is designed to cover essential child-raising costs. A parent can sign an "authorization agreement" form to give a nonparent the authority to care for and make decisions for a child. This guide includes forms and instructions for a letter and affidavit to request that the court register an outofstate custody order in Texas. Step 1: Fill out your court forms. Fill out the following starting forms: ○ Petition to Modify the Parent-Child Relationship. The law allows them to claim and establish rights over their nonbiological children through courtguided procedures.