Start by addressing the judge, just as you would any formal letter.
It will be a very difficult letter to write, it always is. Thanks: 4, Thanked 21, Times in 7, Posts I've answered this a number of times in a variety of forums including the legal forum, but I'll give a brief answer again.
What does he do to volunteer? Or send it to their lawyer. These examples are instantly downloadable and printable in the format of Word or PDF. Keep it simple.
How long have you known them? Example character reference. Writing a character reference Writing a character reference You have been asked to write a character reference for someone going to court because this person has broken the law. In their time on the bench, you would be surprised as to what they have seen and observed.
What are they doing to overcome these problems? It should be as long as it need to be.