Second Mortgage: A second mortgage is a secured loan (or mortgage) that is subordinate to another loan against the same property. More specifically, the second loan in sequence. In real estate, a property can have multiple loans against it. The loan which is registered with county or city registry first is called the first mortgage. Compare Residential mortgage options and save. Online mortgage loan marketplace connecting you to a network of home loan lenders who compete for your business, home purchase loan, mortgage refinancing, home equity loans. We help consumers get the best loans