This is why most double closings are performed illegally, not because the double close portion is illegal, but wholesalers tend to circumvent licensing requirements to make a buck.Just as there are legal ways to drive and operate a vehicle, there are illegal ways to do the same. 

You may also want to ask them to cross-collateralize another property or give you a personal guarantee to further protect you.

I do a lot of seller financing and personally keep track of it all myself but it can be a huge pain. 

It also depends on your price point and budget. because this is going to be your personal residence, at this point, I would just keep aware of city news and developments, and neighborhood pockets.

Ample room inside and out for not only your vehicles but also for a workshop, storage, home gym, perfect for car enthusiasts, business owners or hobbyist.

I suggest to make deep research about the location and risk or ask experts personally before take actions. 

I personally have no interest in buying my own...

They can and often will say 'no' but if you can just get a 'yes' on a single digit fixed rate you're probably better off than any personal or consolidation loan you may get.

STRs that I could use for personal use (family vacations) once or twice a year.  

None of that matters because the algorithm and pacing of the sites and their own personal directives change faster than the speed of light.