The Illinois Affidavit in Support of Joint Dissolution of Marriage is a legal document that is used in Illinois to initiate a divorce process. This document provides verification that both parties involved in the marriage agree to the dissolution of the marriage. It also serves as an agreement that both parties have agreed to the terms of the divorce, including the division of property, custody, and any other related issues. The affidavit must be signed by both parties and notarized in order to be valid. There are two types of Illinois Affidavit in Support of Joint Dissolution of Marriage: 1. Joint Affidavit in Support of Joint Dissolution of Marriage: This document is used when both parties agree to the terms of the divorce and are jointly seeking a divorce. 2. Uncontested Affidavit in Support of Joint Dissolution of Marriage: This document is used when one party is contesting the divorce and one party is not. This form is used when the parties cannot reach an agreement on the terms of the divorce.