You will need to fill out a Civil Case Information Sheet form, which you can get at the courthouse. The New York State Unified Court System offers free instruction booklets and forms for people starting a divorce.I am above the age of eighteen years, and I am fully competent to make this affidavit. This guide includes forms and instructions for a letter and affidavit to request that the court register an outofstate custody order in Texas. To modify a divorce decree in Texas, you must demonstrate a material and substantial change in circumstances. You must arrange for a constable, sheriff, or private process server to serve the initial divorce papers. The court has placed the most commonly used forms on line as a resource. Please be advised that the forms detailed below are intended to be a guide. The necessary forms to competently represent yourself in a Divorce can be found online. This is the Indiana Judiciary self help website.