Carlson Real Estate, located in North Andover, Mass. provides brokerage services for land, condominium, townhouse, and suburban home, in the city, country, mountainside, and seaside. The real estate company is a division of GMAC, one of the largest nongovernmental home mortgage lenders in the United States. It provides online property listings based on number of bedroom and bathrooms, price range, and interior and land area. It also offers comparative market analysis to its customers. The firm s home warranty services covers things, such as attic and exhaust fans, central heating and air conditioning systems, central vacuums, dishwashers, electrical systems, garbage disposals, microwaves, trash compactors, water heaters, and water softeners. Some of its affiliated companies include Gloria Nilson GMAC Real Estate, GMAC Real Estate Global Relocation Services, Hammond GMAC Real Estate, Kinlin Grover GMAC Real Estate, Kinlin Grover GMAC Real Estate Vacation Rentals, Koenig & Strey GMAC Real Estate, and Pacific Union GMAC Real Estate. Carlson Real Estate has offices in Massachusetts and New Hampshire.