Broken Lease, Security Deposit and Administrative Fees

[Scott Painter]

A tenant informed me on Sept 15 she was moving out Sept 30. There are 6 months left on her lease. A new tenant will move in on October 7. Her rent is $550 or prorated $18 a day. She did an ok job of cleaning. I paid a background screening service $25 to check the new tenant. Her deposit is $300. Am I allowed to keep an early termination administrative fee for 10 hours spent finding a new tenant. How much. As a landlord am I allowed to deduct for the $10 cost of a new door knob or the labor it would have cost had I hired a handy man for $15 for a total of $25.