AS you state a 4k turn over just ruined 1 to 2 years of cash flow you will never get back and it just gets worse.Suggest you look long and hard at exiting and getting into a situation in Memphis were your rents are well north of 900 and cash only with those that actually qualify.... other wise you will continue to provide housing as a charity  IE your donating your money to house someone who really does not care... remember what your usually dealing with here and why you have this damage..

Most of us take managing our properties very seriously you obviously prefer that your imaginary tenants operate your business.Time maybe you moved on to a tenant advocacy forum and leave us to operate our business properly without your input.For a guy whose philosophy is all about not being a charity , you seem to devote alot of time to giving out free advice on here. 

If the large furniture is not junk, I would sell it or give it to a charity and right it off on next year taxes.

I'd say a better question would be; How many rental properties do you need to own before you decide you're a charity and not a business person? 

I use the Honeywell 9000 series WiFi thermostats to remotely change temperature settings.I would look up houses on Homeaway.Com that have bookings in the slow hot period and see what amenities they have that are attracting people and see if you could incorporate any of these into your property.Maybe you could also donate a summer week to a charity and use that as a tax deduction?

if you won't wan to t do that call a charity and have them pick it up for free.

They came back trying to change your mind Look you're running a business not a charity I feel for people who need to move into a home maybe they're lease is up maybe a lot of things life happens.

After all this is a business not a charity.

Never...if they can not afford market rent they are not a good tennat.You are either operating a business or a charity.

They once offered up the basement for furniture storage for a charity drive... and also used the washing machine to wash about 20 loads of clothing they were going to donate.