Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. The link provided will send you to the accepted legal decision making and parenting plans ( custody ) for your location.Then, mark who is to pay the child support and how much to the other party based on the request in the Petition for Dissolution, or on the party's agreement. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. You cannot send a letter to the Judge, it would be an inappropriate communication. Requesting legal decision-making and parenting time ( custody ) can take place at any time in Arizona. The first thing to do is to complete the court forms. Court Forms and Instructions. Completing the Forms.