The tenants should pay for the background/credit check. 

Looking for a site that tracks previous, not current, building permits.I know I have stumbled on it the past.Thanks

Treat BP like a one-credit college course. 4) Get involved in your local REIA. 

Have an agent look up the all cash purchases in your area as well and who bought it, track them down and contact them.

Try to keep searching for local banks or credit unions (portfolio lenders).  

It sounds like they trust you and that you have a track record for success.

Useful articles:The Inside Track to Vetting A Multifamily Deal SponsorHow to Avoid the Most Common Commercial RE Due Diligence Mistakes

My credit score is good , 800.

When no one showed up, they knew it was an absolute auction, so twin brother bid $8K and paid for it on his credit card.

In the past, since I have dealt with the kids directly and they have limited credit, I take F,L&S and they are always very motivated to be helpful and get their $ back when they move, which is great.