GMAC Mortgage came into existence in 1985 when it acquired the mortgage loan operations of the Colonial Mortgage Service companies and the servicing arm of the former Norwest Mortgage, Inc. It is an indirect wholly owned subsidiary of GMAC LLC, one of the largest financial services companies in the world.

Headquartered in Fort Washington, Pa., GMAC Mortgage is one of the largest residential mortgage servicers in the nation. The company originates first and second lien residential mortgage loans through a nationwide network of retail offices, direct lending centers and internet sites under the brands gmacmortgage.com and ditech.com, and GM Family First, a custom homeownership services program offered to GM employees, retirees and dealers.