Quicken Loans Inc. is the largest online retail mortgage lender and the third largest retail lender in the U.S. Founded in 1985 in Detroit, Michigan, Quicken Loans, One Reverse Founded in Detroit, Michigan in 1985, Quicken Loans, One Reverse Mortgage and Title Source (a mortgage settlement company). The website is its official website and provides information on loan knowledge, home buying information, repayment options, loan rates and loan calculators.