There was a 21 year old SGT leading the brief and the subsequent movement. 

Upon re-rental, Tenant will be held secondarily liable for default(s) by subsequent Tenant(s) in the payment of rent during the balance of the initial Term of this Lease.

After that, you can collect the subsequent month's rent however your lease allows (personal check, electronic transfer, etc). 

If I am certain that it isn't my problem (ie collapsed drain line or corroded and scaled cast iron) then I pay for the first unclog on a drain and the tenant pays for subsequent unclogs of that same drain.

If the tenant has been a good client and you feel charitable (there is nothing wrong with a compassionate business as long as you are not being taken advantage of or starving yourself/family), then I'd arrange with the tenant to deliver the keys to you on XX date and you will either a) prorate their deposit back to them according to the days they had "key occupancy" assuming the condition of the residence meets your standards to release the security deposit, or b) charge them the amount of the anticipated date XX on the 1st of August and then return their security deposit upon their subsequent vacancy and cleaning subject to your inspection.Personally, I like the prorating of the security deposit better if you feel like the tenant is a good individual and will treat your property with integrity before they move, and it shows additional compassion by not tying up their money while they position themselves for a new location.In any case, do not put yourself in odds with the law, and do not perform any activity that would allow your tenant to come back against you. 

Your savings is $8,900, and you can probably find a good reliable vehicle for $5-6k that you would trust driving that much, maybe cheaper if you are enterprising or know how to fix cars.

She subsequently signed a new lease elsewhere, and was extremely mad when the gentlemen backed out.

It is a modest use of my time and the expenditure is minor but I find it helps in building goodwill that comes in handy with subsequent issues as they arise.

(had newspaper ads to prove it) It was subsequently tax assessed at significantly more than what I paid for it (paid ask) and I contested it all the way to the state tax tribunal and lost.

"But boy oh boy, we finally found a way to connect the key minimum standards of our housing code to the heart of that property owner’s business enterprise.""