Illinois Petition For Letters of Administration is an official legal form that is required in order to appoint an Administrator of an estate of a deceased individual in the State of Illinois. This petition is filed with the Clerk of the Circuit Court in the county where the deceased person had their permanent residence at the time of their death. The petition must include the names of the decedent, the petitioner, and the beneficiaries of the estate, as well as the date of death. There are two types of Illinois Petition For Letters Of Administration: General Letters of Administration and Special Letters of Administration. General Letters of Administration are used when the decedent has not left a Last Will and Testament, or when the Will is invalid. Special Letters of Administration are used when the decedent had a valid Will that leaves property to one or more persons, and the Administrator is appointed to manage the distribution of these assets.