The company we use for credit/background checks will not allow our company to share that information with anyone else, not even the property owner (when we are acting as the property manager).

You should certainly speak with a real estate attorney and then double check their solution with a CPA. 

Find properties that fit Airbnb's standards, taking into consideration what amenities they offer, where they're located, and how satisfied guests have been.

I recommend you checking the Midwest market. 

.- Review Historical Permits: Check with local building authorities to see if the previous owner obtained the necessary permits for the repairs.

Check out the BP meet-up forums for Cincinnati, Ohio area and you will see "Real Estate on Tap" and can see the information for each meeting hosted and the topic based on the speaker.

I am diligently saving/scanning/uploading receipts & importing transactions from a rental-specific-checking linked bank account.

But this project might be a little different than a standard syndication..

Check out NARMP.com

Goosehead has loose standards for bringing on franchise agents.2.