Fundamental Requirements and Provisions Relating to Wills · Will Formation
Under the rules and limitations prescribed by law, a person of sound mind has the right and power to make a will if, at the time the will is made, the person:
(1) is 18 years of age or older;
(2) is or has been married; or
(3) is a member of the armed forces of the United States, an auxiliary of the armed forces of the United States, or the United States Maritime Service.
Official text of the Texas Estates Code as published by the Texas Legislative Council.