Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. Take your forms to the court clerk.Go to the same courthouse you listed on your forms. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. Child custody declaration letters help parents state their position and requests to the court. Form Name, Form ID, Revised Date, Fillable, Mandatory. The way to convey your side of the story to the judge is through an Affidavit. It can be attached to any Motion. Sample 2 – Child Custody Character Reference Letter. 1.