Loan against immovable propertyA mortgage lender is an investor that lends money secured by a mortgage on real estate. In today's world, most lenders sell the loans they write on the secondary mortgage market. When they sell the mortgage, they earn revenue called Service Release Premium. Typically, the purpose of the loan is for the borrower to purchase that same real estate. As the mortgagee, the lender has the right to sell the property to pay off the loan if the borrower fails to pay.