The Petition tells the judge and your spouse that you want a divorce and states what you want the judge to order in the Final Decree of. Divorce. File an "amended petition" to add something to, or withdraw something from, the original petition.Have an attorney look over your amended petition. To modify a divorce decree in Texas, you must demonstrate a material and substantial change in circumstances. George L. Allen, Sr. Courts Building - 600 Commerce Street, Suite 103, Dallas, TX 75202. You can file a motion to set aside the default judgment and a motion for new trial. These instructions explain the basic steps in a default divorce when there is already a final court order for custody and support of your children already in. Can You File a Motion for New Trial in Your Divorce Case After a Default Judgment Was Rendered Against You? Updated: June 4, 2024. This list is not comprehensive.