an illinois lease termination letter (“notice to vacate”) is a required document to end month-to-month lease agreements in illinois. a residential lease termination notice is delivered to a tenant when a landlord requests to end the lease agreement. notice requirements depending on 2 things: whether or not there is a fixed term, and, if there is no fixed term, the intervals of renewals or payments (e.g. this is also advantageous because there is no need to file a notice to quit document for particularly difficult tenants; simply provide this document, and the monthly-renewing month-to-month lease will cease renewing. for the sake of comprehensiveness, for tenants, the party that is receiving this notice should be the lessee that’s on the month-to-month lease. the name of this tenant should be precisely as it appears on this original lease.