By default, Tennessee landlords can enter a tenant’s unit without permission due to a lack of statewide mandatory entry policy. However, some limited exceptions exist, such as a requirement for 24 hours of advance notice when a landlord intends to enter to show the unit to a prospective tenant within the final 30 days of the applicable lease agreement. In all cases, though, permission-less entry is fully permitted when it is used only in emergency situations
The information for this answer was found on our Tennessee Landlord Tenant Rights answers.