What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template.Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. NOTE: Use this form if there is no court order for child custody to which you are a party. This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. This sample pleading is for informational purposes only. Complete a Complaint for Custody (CC-DR-004) to ask to the court to grant you custody. "Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. How do I write a letter to the court for child custody? The way to convey your side of the story to the judge is through an Affidavit.