Court Forms and Instructions. Completing the Forms.Fillable forms for filing in Arizona Courthouses. Here you will find forms for every case type. Forms for filing a case, answering a summons, entering a plea, even asking for a continuance or for an appeal. Insert the hourly, monthly , or annual gross income for each parent in the appropriate box. Forms and information for filing for child support in Arizona. Follow these steps to start your Arizona custody (legal decision-making) and parenting time case. Learn what forms you need, how to serve papers and more. Please fill out the Arrearage Calculation Request form (PDF).