Typically we see a non refundable deposit and extension fees to keep the property tied up.

The vast majority of lawsuits against Landlords are for wrongful eviction, security deposit disputes, and Fair Housing Violations.

Incentivism them to get out of the house--we have offered full deposit return (obviously that is done day they leave--draw it up if you need to so they are comfortable). 

After this tenant leaves, you must clean/repair, market, screen applicants, select an applicant, collect the deposit and rent, get them moved in, etc.

All that's due is the security deposit, for you to return as long as no damages to the property. 

On this forum search screening,  deposits, utilities.

. - Make sure you get a security deposit and perhaps do a surprise inspection of their current home.S8 requires an inspection (mostly health & safety) before approving a lease and then annually thereafter. - Not something most landlords taking care of their properties have to worry about.There are limits to clauses they allow in your lease.

It can be a looooong process here compared to states like AZ, with your deposit being held for more than 6 months, so you have to understand the process.

Also, is he entitled to the security deposit (minus any repair expenses)?

Should I have them pay right now or out of security deposit whenever they move out?