To break a subletting operation in Arizona, a subtenant would use the same evacuation process that a landlord would follow to remove a tenant. Send a letter. You should send a letter to your landlord by registered letter, request a return certificate and save a copy of the document for your own documents. The registered letter is the only proof of delivery that most courts accept and therefore the best way to protect yourself. The letter should clearly specify the terms of the agreement and contain the following information: Step 6 – Point VIII, where any additional agreements that have been discussed and decided can be documented. Step 3 – The first point of this lease is the duration. A box must be marked here to indicate the type of subletting.