The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. Sample Format for a Character Letter.If you have been asked to write a character letter, this simple template may be a useful guide. In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. The best character letters often begin with the writer explaining who he or she is and what he or she does. Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document. , business letter or legal document format).