Not just for criminal, but for any lawsuits that have ever been filed against them.  

Who will run the criminal background check?  

I'll send in your complaint

No, other than maybe lodging a complaint at your local/state level with whoever regulates your banks there.

There are several Mankato investors on here but their comments hold no grounds if you get a complaint from the city.  

You should never categorically deny an applicant that does not have a SSN, you would be inviting a possible fair housing complaint.

It is borderline criminal.

See below for the most recent news story but also check out the FBI's criminal complaint which allowed for his arrest and detention (2nd link).

It is a federal crime to commit mortgage fraud and you can incur criminal and civil penalities Most of the time other investors can turn you in in cases where you bid on hud homes as owner occupants and did not follow thru

—In all criminal cases, contempt cases, and other cases filed pursuant to this chapter, if a party has sold, leased, or let real estate, the title to which was not in the party when it was offered for sale, lease, or letting, or such party has maintained an office bearing signs that real estate is for sale, lease, or rental thereat, or has advertised real estate for sale, lease, or rental, generally, or describing property, the title to which was not in such party at the time, it shall be a presumption that such party was acting or attempting to act as a real estate broker, and the burden of proof shall be upon him or her to show that he or she was not acting or attempting to act as a broker or sales associate.