I am sure many companies may differ, but we use an outside contractor to check credit on anyone applying for a lease. The company will check all three major credit agencies and send us a report with a combined FICO score and information about each account (such as credit cards, cell phones) the applicant may have on their credit report. This is for leasing/renting a home.
For mortgage companies, again each bank or mortgage company will have their own policies and provider to run the credit.
Royce Simmonds, Broker-Owner
Simmonds Real Estate Inc. http://www.roycerealestate.com
36 Years Air Force Service (15 Enlisted-21 Officer)