Writing a character letter for a judge can be a daunting task. Here are nine essential tips for writing an effective sentencing letter.The Supreme Court Commission on Access to Justice has approved the following forms. All Illinois Courts must accept these forms. Use a formal email address, preferably one that includes your full name. Sample 2 – Child Custody Character Reference Letter. 1. Heading and Greeting. The author is a U.S. magistrate judge in the Northern District of Illinois and an associate editor of LITIGATION. You and your opposing counsel are headed. If you've been asked to write to the judge, use our sample character reference letter and fill-in-the-blank template.