The Arizona Petition for Legal Separation with Minor Children for Petitioner Only is a legal document used in the state of Arizona to file for a legal separation. This petition is used by a petitioner (one spouse) who is seeking a legal separation and has minor children. It is a form that must be completed and filed with the court. The form includes information about the petitioner, the respondent (the other spouse), the minor children, and the grounds for the legal separation. There are two types of Arizona Petition for Legal Separation with Minor Children for Petitioner Only: a joint petition and an individual petition. The joint petition is filed by both spouses and includes the same information as the individual petition. The individual petition is filed by one spouse and includes information about the petitioner, the respondent, the minor children, and the grounds for the legal separation.