A Security Deposit Demand Letter is a written communication from a landlord to a tenant requesting the return of a security deposit. The letter typically explains the reason for the demand and may include the amount due and the date by which it should be paid. There are two main types of Security Deposit Demand Letters: one sent prior to the termination of a lease, and one sent after a lease has ended. The letter sent prior to the termination of a lease is usually sent when the tenant has failed to comply with the terms of the lease, such as failing to pay rent or damaging the property. This letter will usually outline the tenant’s obligations and explain the consequences of not complying. The letter sent after the lease has ended is typically sent after the tenant has moved out of the rental property but has failed to return the security deposit. This letter will typically outline the tenant’s obligations under the Security Deposit law, explain the reasons why the deposit has not been returned, and give the tenant a deadline for returning the deposit. Both types of Security Deposit Demand Letter should include the landlord’s contact information and a copy of the lease agreement.