The security deposit is a deposit given by the tenant to the landlord as security for the tenant’s performance under the lease. The landlord must account to the tenant for the deposit at the end of the lease. Under most property-management agreements, the property manager holds the security deposit during the lease term on behalf of the landlord and accounts to the tenant for the landlord at the end of the lease term. Since you are no longer the landlord’s agent, you should forward the security deposit to the landlord and remind him he has a duty to account for the deposit when the tenant vacates the property. You should send written notice to the tenant advising him that you are no longer the agent for the landlord, that you tendered the security deposit to the landlord, and that the landlord is responsible to account to the tenant for the security deposit. Alternatively, you and the landlord may agree that you will continue to hold the money and account for the security deposit, but such an arrangement should be stated in writing and be specific as to the parties’ responsibilities, such as who will inspect the property for damage upon move-out and who will make determinations about any deductions.