They're looking for a stable market that is gobbling up houses just after a slow period so they can still get good deals on land before it gets hot and popular again.  

These two states have been super hot over that last few years when it comes to both single family and 2-4 unit multi=family rentals.

It might be worth talking to a lawyer but not sure if it's small claims or worth it.Also, you might already have all of these things but for future prevention:- smart thermostat (so you receive alerts when the inside temperature dips below whatever preset you have)- Minut (or similar device) would also alert you to the inside (and outside) temperatures; for example, I have 2 devices inside the house and outside on the hot tub deck.

Do you still have furnace and hot water tank?

I'm a local Baltimore realtor and I know for a fact that this market is red-hot and everything, and I mean anything, can be sold for the right price.

Handyman to wire a hot tub ?   

We've installed the Moen leak detection device, which detects leaks both hot water and cold water, and monitors water usage and gives you weekly reports.

Market being hot helped and no permits to deal.

There is a river of hot water by the hotel Tabacon in San Carlos that is an absolutely unique experience.  

I will mention that a hot tub could really increase the frequency of bookings.