A demand letter is a letter you can send to try to resolve a dispute before going to court. Demand letters are often sent in cases where someone owes money.George L. Allen, Sr. Courts Building - 600 Commerce Street, Suite 103, Dallas, TX 75202. Once you enter the name and date of birth, click the details button. You can also use the citation number to pull it up. Enjoy our new and improved forms page! Writing a character letter for a judge can be a daunting task. Here are nine essential tips for writing an effective sentencing letter. Forms are grouped into the following categories. About Federal Courts.