Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. Always address a judge as "Your Honor".It doesn't matter if you are speaking or writing, or in or out of court. If you've been asked to write to the judge, use our sample character reference letter and fill-in-the-blank template. What's a character reference letter? This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. 1. Fill out the forms. There are several forms you have to fill out to get the judge to finalize your case. This is an outline of the general steps in a typical family law case such as divorce (dissolution) or parentage (unmarried parents). These are the official forms for use in Family Court proceedings.