I'm in the same boat, wait and see.

Mention how the seller can close in days or months?

How can you walk into a Starbucks and pay for a coffee when merchants have to wait for the money to clear?  

Those should drive a ton of traffic to your listing.Furnished Finder is the go to for MTRs (long term rentals with a shorter stay, over 30 days).You can also use FB like @Bruce Woodruff mentioned but you will need to get everything setup to take bookings.

If risks feel too high, consider waiting until your live-in flip is complete and your position is stronger.This post does not create a CPA-Client relationship.

I see you mentioned the BRRR method, here's a nice breakdown of it here on Bigger Pockets.   

No renting of any kind and explicitly mentioned even renting to others who live with you.

@Andrew Street are the AirBnB Host Groups you mentioned above found on the Airbnb platform or through facebook, etc.? 

You mentioned that you did your due diligence and that the people behind the project are legit.

As I mentioned above, the risk of being sued, found guilty, and fined more than your insurance will cover is almost non-existent.