Highlight the pertinent part(s) you are referring to in the demand letter. In general, Texas has very few official legal forms.This is why you will not always find a free fill-in-the-blank form for your situation. Addresses for Service on the Secretary of State. Your complaint will be reviewed for informational purposes, helping the Attorney General monitor consumer protection issues throughout the State of Texas. There is no formal requirement that states you need a lawyer to write your demand letter in Texas, you can do it on your own. Some legal clinics and legal service agencies will help people with disabilities fill out forms.