I walked over and talked to them and they said their landlord wouldn't fix the air conditioner.

For example two weeks ago there was a problem with the air-conditioner, tenants called my property manager and they informed me of the issue and then called the home warranty company. $75.00 and what would be a 300.00 problem was fixed for $75.00 service call fee.

I'm an Operations Manager for one of P&G's manufacturing plants that makes a bunch of shampoo, conditioner, body wash, and that type of stuff. 

That means that even if you install a window air conditioner, as long as it's on the first level behind the fence, you're fine, but up on the side of the house on the second level will get you a letter.

If you are a newbie, you will not believe the conditions tenants will tolerate rather than getting prompt, proper, repairs done.I just re-rented a luxury home where the prior tenant never complained during a five year tenancy about anything, and due to very unusual circumstances a thorough interim inspection was never done:Range hood inopClothes dryer inopGarbage disposal inop5 of 7 exterior area lights inop; two interior circuits inop1 of 6 toilets inop3 of 5 air conditioners inoppool sweep inop5 sets exterior french door handsets so pitted you cut your hand opening the doorsrodent infestation in atticAll this in addition to nearly a complete repaint, stripping and resealing floors that had improper products applied, replacing 4 rooms of carpet, and minor miscellaneous items.Believe me, I would have MUCH preferred to make these repairs as they occurred, paying out of the cash flow, rather than having the owner fork over nearly 20K to make it rent ready again!

We can temporarily install a window air conditioner, but hot weather is not the norm in our area and AC is not required, so most people do fine with just the fans.

The air conditioner is a good point too.

If it's wood, get some good wood cleaner/conditioner and make it shine.Make sure there is no deferred maintenance on the front exterior of the house...things like loose gutters, loose house numbers, torn screens, broken windows, etc.  

He also must have been peeing on the air conditioner unit because there is a triangle on each corner where the fins are all gone - eaten up by the acidic urine! 

The mini-split is essentially an air conditioner.