First Mortgage refers to a real estate loan where the first claim in case of a default is of the mortgage broker. This AboutUs list on 'first mortgage' is brimming with websites of premier first mortgage service providers. Whether you are looking for a mortgage broker in US, Canada, Italy or UK, the websites below offers a wide range of choices of first mortgage providers. From RBS mortgage to Fidelty First - this list has all the leading brokers of first mortgage service. If you know of a website on first mortgage missing from below, please add it along with a short summary.