Illinois Waiver of Notice appearance For Letters Of Office and Consent is an agreement between two parties where one party waives their right to receive notice of any court proceedings related to a certain matter. This waiver allows the second party to apply for Letters Of Office and Consent without notifying the first party. There are two types of Illinois Waiver of Notice appearance For Letters Of Office and Consent: the Subscriber Waiver and the Executor Waiver. The Subscriber Waiver is executed by the individual who is applying for Letters Of Office and Consent and waives their right to receive notice of court proceedings related to the matter. The Executor Waiver is executed by the executor of the estate and waives their right to receive notice of court proceedings related to the matter. Both waivers must be signed and notarized in order to be valid.