This was a win-win, as we were able to help pay the owner's medical bills, and we got a great investment!

Non-negotiable.

Most people in that area or DC or any of those, that I've known at least, tend to invest non-locally so they can get cash flow.

If the shop building or remaining 15% do not add value above and beyond your cost then I suggest protecting yourself with a non-refundable deposit or some other assurance from this buyer.  

So I know a lot of people here read realestate and business books. I'm curious if anyone reads family books to better relationships or parenting books. If so any suggestions would be awesome.

Hire a competent consultant or accountant(non-cpa) to review your books to see what you are doing right/wrong. 

I've never lived in Orlando (only been there a thousand times) but it seems like there is a non-stop flow of new vacation rentals and timeshares. 

What's the difference between an educated seller and a non-educated seller?

Located in the central Phoenix area and currently work in medical sales.

Non-recourse loans directly to my SDIRA are in the 65% LTV range, making this less than ideal from a BRRRR standpoint.