Up to 7 years of post-divorce support. This is the maximum duration allowed if the marriage lasted at least 20 years but less than 30 years. 3.The Final Decree of Divorce form must be completely filled out (except for the judge's signature) before you go to court. In most cases, the Texas Family Code provides that spousal maintenance may only be ordered for spouses that have been married for 10 years or longer. We have detailed knowledge and expertise in all areas of divorce, including the rules and requirements of spousal support, maintenance and alimony. Do you need assistance with a spousal maintenance matter? Let us help you alleviate your situation. In short the answer to this question is yes, Texas allows for spousal support payments to be a part of a divorce settlement agreement. In short the answer to this question is yes, Texas allows for spousal support payments to be a part of a divorce settlement agreement. Spousal support here in Texas is typically decided on a case-by-case basis.