I have vacant properties in Northwest Washington with water and septic.

 I have an 8 plex that I pay the water on every month.

All of the locations are sold with cool tax benefits. 

I was under the impression that the hydronic systems were basically like the convection with an electric heating unit but had a closed loop water or oil system inside to retain the heat.

Very cool!

If you are using Zillow for your wholesale strategy, you better get a big bottle of water to accompany you on your journey, as you will be chasing leads down a whole lot of rabbit holes.

Has no running water to the cabin, but I was just planning on running water lines to it underground and disconnecting the lines during the end of summer months( I live in cold climate).

Our AC is already running a good bit in the day as temperatures are getting up to 80.We just put in a wifi smart water heater in our Vrbo.

Two or more layers of shingles are not ideal, even if they use more nails than they should, lacking of adhesion to plain wood or the film layer before the shingles (water shield or decking protection felt) is gone.  

After many email and calls unresponded in the following 1.5 months, I found the house broken in, water tank and furnace stolen.