A lease cancellation letter is a document used to formally terminate an existing lease agreement and identify the terms of its termination. This type of letter may be sent by either the tenant or the landlord, depending on the circumstances. The contents of the letter should include the date of issuance, the name of both parties involved in the agreement, specific details about the lease agreement that are being terminated, and any relevant notes or explanations. Additionally, it should clearly state when the agreement will officially end and could include other items such as rental payments, unused security deposits, or outstanding fees. Ultimately, the lease cancellation letter serves as a formal notice for ending a rental arrangement between two parties.