In general, most states allow a landlord to terminate a lease or rental agreement if the tenant: Fails to pay rent; Violates a clause in the lease or rental agreement; Violates a responsibility imposed by law. When terminating a lease or rental agreement, the landlord must send the tenant a notice of termination. Sample Agreement Regarding Cancellation of Lease. This agreement is entered into on [date] between [tenant name(s)] (Tenants) who lease the premises at [full address of your rental] (Premises), and [landlord's name] (Landlord).1. Under the attached lease dated [effective date of most recent lease], Tenants agreed to pay Landlord monthly rent of $_____ [use the monthly rent amount agreed upon Sample Termination Letter of Rental Agreement for Cause. August 1, 2010 Ms. Alice Cooper Dingo Apartments, Inc. 1775 Independence Drive MyHomeTown, NE 23456 Dear Ms. Cooper: This correspondence is to provide my formal thirty day (30) notice to you that I will be leaving my apartment at 324 Cooper Stree, Unit 267, MyHomeTown, NE 23456, by the first day of September, 2010.