Sample Disability Letters. Below are some examples of how a friend, family member, or employer might write a helpful disability letter.Dear Judge Doe: I am writing this letter on behalf of a family member mine who is presently before you on criminal charges and is due to be sentenced shortly. In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. The forms provide a means for family members to communicate about their relative's mental health history to psychiatric and court authorities. For example: San Jose, CA. Child's Birthdate. Writing a character letter for a judge can be a daunting task. Here are nine essential tips for writing an effective sentencing letter. Your aim should be to provide insights about the defendant respectfully without suggesting that the court's judgment is flawed in any manner. The letter should be specific.