My only other option is to do spot treatments on the half that I own and call it a day.

I have listened to lots of people way smarter than me (here and elsewhere) and every single one says there is really nothing to worry about, and they have never heard of a bank calling the loan.

I've got a call scheduled with my provider - but I am concerned that the rollover was not legit. 

I would call some real estate agents in your area and find out how quickly these properties sell.

I am working with a company called GroundFloor that's lending the rehab funds for my deal based on my ARV.

Call Tim Handwork (DM me for his #, I can't post it here).

I have gone to the closing table with no insurance and one call I have insurance to close.

Sure ...call me anytime.

As unpleasant as it may sound, I would suggest calling the Tax authority in KY and tell them what your doing and what you need to do.  

I am an experienced real estate broker based in the UAE for 13 years, working to market and sell UK investment developments and UAE residential developments to international clientele.