Sample Disability Letters. Below are some examples of how a friend, family member, or employer might write a helpful disability letter.A disability appeal letter can help strengthen your case in the disability claims process. 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. Attorney explains what Character Letters are, tips for writing a great one, things you should avoid, and templates that you can use. A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court. A family member may petition the Judge to be named guardian or the disabled person may express a preference as to his guardian. In this article, we will discuss how to write a formal letter to a judge, along with the proper format and a sample letter. Court Forms for the Probate Division.