The Arizona Petition for Modification of Legal Decision-Making is a legal petition used by either parent or another interested party, such as a grandparent, to modify a court’s prior order regarding legal decision-making. The petition requests the court to modify the existing order regarding legal decision-making, which is the legal term for custody. There are two types of Arizona Petition for Modification of Legal Decision-Making: 1. Petition for Modification of Legal Decision-Making and Parenting Time: This petition is used when a parent or other interested party wishes to modify the existing legal decision-making order and the parenting time schedule. 2. Petition for Modification of Legal Decision-Making: This petition is used when a parent or other interested party wishes to modify the existing legal decision-making order, but not alter the parenting time schedule. In either case, the Petition for Modification of Legal Decision-Making must be accompanied by an affidavit detailing the reasons why the modification is being requested, the proposed modification, and the name and address of any other involved parties. The petition must also include a proposed parenting plan, which outlines the proposed division of parenting responsibilities.