In Arizona, when two or more people own property together and disagree about its use, one or more of them can file a partition action. STEP 1: USING BLACK INK ONLY, Fill out the "Civil Cover Sheet." â–« Write in "Maricopa" as the county. If you go to the internet site US Legal Forms and enter Arizona and look for Partition of property you will find a form you can use. Court Forms and Instructions. Completing the Forms. The first step in the process of the family court case is the initial filings.