Arizona Incorporated Attachment is a document that must be filed with the Arizona Corporation Commission when forming a corporation in the state of Arizona. It identifies the incorporated, or the individual who is responsible for filing the Articles of Incorporation, and their address. The document must be notarized and can be filed electronically. There are two types of Arizona Incorporated Attachment: individual and joint. The individual form is used when only one person is the incorporated, while the joint form is used when two or more people are forming the corporation together.