My only concern would be whether or not, you’d be able to cash flow.

I am not very concerned with cash flow and am looking more towards appreciation and equity. 

Beyond immediate safety concerns, the long-term financial implications, including taxes, are a pressing issue for those impacted by the disaster.

Hopefully assistant coach to Popovich lol and yes he does. he is already set up extremely well, I am trying to catch up

As far as rate is concerned, you can usually go about two points over the current rate (less closing costs for a seller financed deal so there is no real expense there) You need to make sure the borrower can cover that.

I also am very interested in purchasing more STRs, and this is a really low risk way to see if I'm up for it (we have a 2.9% interest rate on our mortgage).My biggest concern is an ongoing plumbing issue we have had.

Clicks and conversion rate are extremely important.

And when it comes unraveled, implications CAN BE extreme, INCLUDING jail/prison time for it. 

Adding in paying off the loan with both return on the invested capital AND saving from salary is still extremely basic.  

It looks like a great idea on the surface but the numbers don't stack up from a risk/return point of view as far as I'm concerned (it could be different for you depending on your return expectations).