The Illinois Summons Petition for Dissolution of Marriage/Civil Union Inca) is a legal document that is used to initiate a dissolution of marriage/civil union case in the state of Illinois. It is filed by the petitioner, who is the person initiating the dissolution of marriage/civil union, and served to the respondent, the other party involved in the dissolution of marriage/civil union. This document is used to establish jurisdiction and to notify the respondent of the dissolution of marriage/civil union proceedings. The Illinois Summons Petition for Dissolution of Marriage/Civil Union Inca) includes the names of the parties involved, the date of marriage/civil union, the grounds for the dissolution of marriage/civil union, and other important information. It also includes the date on which the respondent must answer the petition and the consequences of failing to do so. There are two types of Illinois Summons Petition for Dissolution of Marriage/Civil Union Inca): 1) Joint Summons Petition, which is used when both parties agree to the dissolution of marriage/civil union and are willing to sign the petition, and 2) Separate Summons Petition, which is used when the parties do not agree to the dissolution of marriage/civil union and need to litigate the issue in court.