Fillable forms for filing in Arizona Courthouses. What parents and witnesses need to know about character reference letters to the court for child custody.Includes a downloadable sample and template. The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. Court Forms and Instructions. Completing the Forms. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. Step 1: Review the Motion to Set form to make sure it is complete and filled out in black ink. Sign and date the form before you make copies. Self Help Court Forms. Civil.