Downloadable template and sample letter to a judge. Below, find a fill-in-the-blank template, as well a detailed example of a declaration letter.This guide includes forms and instructions for a letter and affidavit to request that the court register an out-of-state custody order in Texas. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. Fill out the demand letter template with your information and sign the letter. Make three copies of the letter. You do not write letters to judges. This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. File this form when you and the other party cannot agree to a temporary arrangement for parenting, child support, or other issues before the final hearing date.