Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. It's called ex parte communication and it is forbidden.This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. Affidavit of Child in Support of Motion for an Order for Sibling Placement or Contact. These are the official forms for use in Family Court proceedings. State exactly what you want from the court here. Don't make demands though.