Right to demand a jury trial in a de novo hearing. The county court must set the matter for hearing within.The case must be tried de novo in the county court. Authorized to practice in the State of Texas, as an officer of the court. In general, the deadline to file a motion for a trial de novo is within 10 days after the judgment is entered in the justice court. You should be considering an appeal to one of your state courts. In de novo appeals, the reviewing court can take the wheel and go full throttle. DEMAND FOR A. TRIAL DE NOVO. -against-. Trial de novo in the County Civil Courts at Law. The Instructions for Completing the Orders – currently under the Temporary Ex Parte Order form – apply to all orders, including the MOEP.