First of all he has a business model that has worked pretty darn well for him for a bunch of years so don't discard that quickly because of what some spreadsheet tells you about hypothetical/potential returns. 

We don't have any desire to flip or make a quick buck.

I remember him reading Rich Dad Poor Dad and also having many properties in Mexico.

These things can get nasty quick. 

You will quickly find out just how that court interpreted the law and what the court believed was permitted and prohibited.

My goals are to pay this thing off as quickly as possible, while looking for more like it.  

Honestly, I was shocked that all of them responded so quickly and eagerly - and somehow all of them had the time and bandwidth.

Now it's done and you do your best.Don't rash into anything quickly in such an emotional time - you'll regret later.

The good one's sell very very quickly, but there are a lot that sit on the market for quite some time.

I would try to renegotiate the terms or figure out a way to refinance it very quickly