How To Write A Letter To Renew The Lease . The introduction should give the details about how the expiration of the current lease approaches. If the tenant accepts the offer, document any changes you wish to include in the lease agreement and have both parties sign the new contract. Lease Renewal Offer Letter Collection Letter Templates from diabetescured.biz These design templates provide superb examples of the best ways to structure such a letter, and include sample. When you’re writing a lease renewal letter, you should include: A landlord or tenant may choose to not renew a lease for any reason except for discrimination or retaliation.