View court forms and instructions to file a petition and serve papers to establish custody, parenting time, and child support in Maricopa County, Arizona. The link provided will send you to the accepted legal decision making and parenting plans ( custody ) for your location.Step 1: Complete forms. You can download the forms to open your case from the state's self-help website or your county's website. Court Forms and Instructions. Completing the Forms. The first step in the process of the family court case is the initial filings. Forms, digital trainings, resources, and relevant information for filing for an adult or minor guardianship or conservatorship in Arizona. Within thirty days after notice is made the nonmoving parent may petition the court to prevent relocation of the child. I agree with both answers above.