Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter.The Virginia Judicial System has a number of forms for each court available on the court's form page. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. "Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. You must be a Virginia resident to file this form. You must file a separate form for each. Petition. Writing a letter to the judge is considered an inappropriate ex parte communication. Do you need to file a Child Custody Affidavit?