Gambino Realtors is one of the oldest and largest real estate firms in the Rockford, Ill., area. The company provides real estate services for residential and commercial property buyers and also maintains a complete home building division-Gambino Home Builders. Its services include buying, selling, relocation, financing and listing. The company is an affiliate of GMAC Real Estate, a conglomerate of more than 1,300 franchised and company-owned real estate offices throughout the United States and Canada. Gambino was founded in 1923 and maintains its office in Rockford.