I personally think you'd be able to install a lock over the thermostat as long as the thermostat was left at an inhabitable temperature.

(Even if not a Veteran, FHA loans are very easy to get you just need to intend to inhabit the property at the time of purchase).If you have equity in your properties and no seasoning issues(having recently acquired a different mortgage) you may be able to use them as collateral for an additional loan.

I have asked her on the same day she complained that she can move out immediately if she thinks the house is inhabitable.

If the tenant makes it inhabitable, we will document the incident and charge them for the cost of repair/remedy.  

For instance:"Older, SWM, straight, smoker, not particularly religious, has room available for rent for one person, share rest of house"In this hyper-politically-correct world we now inhabit, would posting the above put me at risk for getting slapped with a charge of posting a discriminating housing ad?

My employment background is in aviation I worked on F/A-18E jet engines in the Navy and then got out and have been doing that as a civilian so about eight years of that.

I get that.. and in some markets the are not flexible and or will pass on the listings. which is their choice..you have to separate the knowledgeable investor from the civilian home owner who might buy 1 or 3 properties in a lifetime.. 

Usually there is some language in the lease saying essentially that they have seen the property and accepted that it is in habitable/decent condition. 

This population collapse will be most keenly felt out past the city first, and the younger inhabitants will move into Allegheny County and Pittsburgh proper from communities like Kittanning and New Castle, Canonsburg and Jeannette.

Now as long as at the time of purchase you have the intent of inhabiting your unit as your primary residence and do not intend to rent it out, you are OK.