This form accompanies a copy of a document filed in a circuit court case, for example, a complaint. c. Below, find a fill-in-the-blank template, as well a detailed example of a declaration letter.Keep in mind that court requirements and preferences vary. The purpose of this site is to provide information from and about the Judicial Branch of the US Government. "Learn how to craft an effective character reference letter for court proceedings with our comprehensive guide. About Us Careers Contact Us. VDSS Search Search Icon. This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. Sample 2 – Child Custody Character Reference Letter. 1. Heading and Greeting. For example, if you are applying to an appellate court noting significant brief writing, or other appellate advocacy experience would be appropriate.