Downloadable template and sample letter to a judge. Below, find a fill-in-the-blank template, as well a detailed example of a declaration letter.I am a fit and capable parent and otherwise qualified to have sole legal and physical custody of the child(ren) and act in the best interest of the child(ren). This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. You can file a petition for child custody in your county's Superior Court. If you are divorcing, the petition will be included in your divorce papers. What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template. In the paragraphs (c) through (f) insert the requests which you are making to the court.