Are there specific databases or resources that are invaluable for this research?

If STRs are not permitted but neglect to follow policy and enable the tenant to sublease the townhome, you risk receiving HOA fines. 

After the fact I tried to search the national Pacer bankruptcy database, but could find no mention of the property's owner.

I enjoy sharing my success stories, showcasing how lucrative deals and wise investments have enabled me to make a positive difference in my life and the lives of others.

The lending environment may very well have changed by then and instead of a vision you will have execution when you try to get traditional funding.If you have your database from when it was operating, start there. 

The internet and social media are powerful tools that enable these bad actors to get in front of their victims.

My wife and I use it in our 14 apartments and build our data base like crazy.

It's highly unlikely though, that a Class A tenant will settle for a Class C property in a Class C neighborhood.It'd be interesting to put together a data-based matrix on these 3 variables to support the above opinions:)

I'm in Los Angeles.What I'm curious about is if you have a strategy to get bookings from the companies, beyond them finding your listing somewhere and adding your property to their databases. 

I have a database with over 1,000 lenders who are legit.