To complete the form, fill in the county and cause number for your case. Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips.What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. Here you will find forms that are used statewide in Washington Courts. This packet tells you what should be included in a Declaration and tips on how to write one. ("What If I have Questions" below has referral info if you have a low income.) Figuring out if you can and should file for a. Sample 2 – Child Custody Character Reference Letter. 1. Heading and Greeting. These are the official forms for use in Family Court proceedings.