Generally there are multiple units for each "zone" if you will when I've seen them installed.Regarding your problem at hand, I personally would simply adjust your plan to move and make your initial plan to get the current issues resolved, while costly now, in the long run holding onto the unit will likely pay off. 

Why do you think purchase contracts are so long and have such small print?

How long would that take? 

Also, I'd encourage you to think long term. 20-30 years from now, it won't matter if you bought your first property now or 3 years from now.'

When Columbus sailed, there cities were old and had long addressed housing issues generations before. 

We see it all the time with the conversations on what cars/vehicles folks drive :) here in BP there is a badge of honor to drive a 20 year old 250k mile car/truck :) Myself I saw my dad do some of this although he never got to the utra wealthy stage by a long shot but made good money in RE however it was not until he bought old style timeshare in Maui that he would finally take a vacation..

I've been buying SFH's out of state all cash as long term hold rentals.  

How long did it take to complete those first three builds?

Used houses in the area sell anywhere from $75-125 a square foot.These are long term rentals that I do not plan to sell.I am reading the Rental Property Investing book and implementing the method that focuses on cash flow and that strategy states you need to have $300 cash flow per month, per property.

Understand your short term and long term goals.