How do check legitimacy of a PVT Money Lender?

[Christopher G.]

Hey guys, was PMed by a private money lender today from a FB real estate page that I'm on.  He said he gives loans from 6months to 20 years at 5%.  Background check includes bank statement to prove they have income, ID, proof of US citizen and that's about it.

Too good to be true?  Is there anyway to confirm he's legit, doesn't have a website. 

Thanks