It helped us achieve air superiority over Germany in WW2, but that's another story.

@Royal WinchesterCap rates on the Eastside are relatively low, but that hardly seems to be preventing people from investing. 

Keep in mind that I have set forms as far as thirty feet below ground and as high as 300 feet in the air.

How will your smart lock prevent the "authorized user" for lack of better term from just letting the other people in?

It stains the walls and molding and also clogs air vents.

I love hospitality and have 1 listing on air bnb and really enjoy it.

Air BnB unfortunately isn’t an option the city doesn’t allow it. 

Am I incorrect in saying that this bedroom has 2 return vents and no supply blowing in warm air?  

And I really wouldn't feel comfortable entrusting keys to someone unless I was absolutely sure I could trust them and that's a rare thing.My concern is that we may have some unforeseen circumstance prevent us from meeting a contractor - we live in a rural area only minutes from the city center but because it is rural we have been inconvenienced by heavy snows and even had a bridge over a creek collapse stranding us for days.

It’ll save you a bit of interest but make you much less liquid.On the other hand, it’ll help prevent you from buying more properties.