Get expert advice on filing a motion to modify temporary orders in family law. Learn about necessary pleadings, forms, and timelines for Arizona and Texas.To successfully modify a temporary order, a parent must show that the current arrangement is not in the best interests of the child. This article discusses registering other states' custody and support orders in Texas so that Texas courts can change and enforce them. I ask the Court to modify other temporary orders as follows: I pray that the Court grant the Motion to Modify Temporary Orders. Respectfully submitted,. The motion for temporary orders does not have valid grounds in the law (in other words, the law does not permit the relief requested). 2. A parent must file a modification lawsuit in the court in the county where the child lives. Do I have to fire my attorney before I file for a motion to modify a temporary order in the court? Ex parte motions are filed with the court without notice to the other party.