Include the case number and arbitrator's name, as well as a preferred contact number in case the Clerk of Court's staff needs to follow up. 5. Find out how to get an arbitrator appointed and the appointment process.When must I withdraw from representation? Been a formal withdrawal from or substitution in the case. 2. Withdrawal and Substitution. Click General Civil Lawsuits-Superior Court Start Now. 2. Select Maricopa from the drop down menu. 3. The list of eligible arbitrators includes all county residents who have been active members of the State Bar of Arizona for at least 4 years. Commencement and Duration of Probate Cases and Proceedings. • Complete statement of the facts of the case.