Our biggest clients tend to use propstream for most of their offline marketing data then backfill it w/ deal machines 911 data (which is another way to verify the contact info of a property owner and it's really accurate). 

That was going to be my first suggestion.In the future, always verify the license of anyone you choose to do business with before signing any contract.

During this period check/verify everything that you want checked/verified.  

Is there anyway possible to verify there were actually other offers especially after closing?

Do you verify their income?

Hello folks in Georgia / Atlanta,The Bigger Pockets Book On Rental Property Investing provides access to a comprehensive list of 34 forms that would be useful to a landlord including things like a lease agreement, app...

Our ultimate goal is to locate a property that makes sense from investor's point of view, that has verifiable ARV, accurate estimate of repairs and right price for a buyer to profit from it.

Once you are out, we will inspect to verify there's no physical damage to the rental and refund your deposit immediately.

It's been great as a noise monitor (and I can also see temperature readings which are verifiable and solid).

As @Sebastian Marroquin stated it is important to verify that it is a legal ADU.