in every state i have worked this information is public record anyone can access it.. 

As to liens, you can check down at the county clerks office, and nowadays, public records are available online.

I can't speak about where you live exactly, but the auditor's website is basically public records, has the owner's name, and usually a phone number to reach out and contact them!

Because it is the commercial space, it is a little harder to find track records (versus residential where you can go to their Zillow profile and see past sales).I would recommend networking like crazy. 

I would propose that you purchase an option to buy the property & record it on title.

If law allows, record your visit to protect yourself from false accusations (sexual harassment, theft, etc.)Did you receive anything from the Tenant's attorney?

Both are record prices for an October but are well below the all-time pricing highs set in June 2021."

Professionals with decades of experience and proven track records do all the heavy lifting.

Not impossible- see if seller kept records of costs of what they put into the house.

After you finish this list, you won't have another set of unique 20k records to pull.