We've been asked by a vendor to provide our policy for checking Mortgage Loan Originators against the SAM/GSA Excluded Parties list, the HUD LPD list, and the FHFA SCP list. They also want proof that we checked these lists for each of our MLOs. We have not been doing anything separately from the normal criminal background checks, credit reports, and checks against criminal/civil proceedings required by Reg Z. Is there something that specifically says we have to check these lists prior to hiring someone?