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Heather Stewart Kaznoski and Mary Stewart, Coldwell Banker Realty Agents, represent home buyers and sellers in Marblehead, MA and the surrounding North Shore communities. They bring over 60+ years of real estate experience and are trustworthy negotiators offering a high level of service, consistent communication, integrity and trust. Heather and Mary are well known in the real estate industry and have long-standing relationships; not only with loyal clients, but with fellow agents, attorneys and lenders, which ensures that your sales transaction will have a successful and positive conclusion. For more information, please visit

Recognized as elite industry leaders, Mary and Heather are consistently ranked as Top performers in Marblehead & Swampscott. 

  • Remained #1 Brokers in CB Marblehead in both Sales Volume and Sides in 2022 
  • Mary and Heather were #1 in Closed Sales in Marblehead last year and #2 in Closed Sales Volume (#2 overall market share)
  • In Swampscott last year, (based on the MLS), they closed $4,515,000 in volume 

Mary and Heather have lived in Marblehead for over 47 years and are both very active in supporting the Marblehead community. Their community involvement has included: The Marblehead Festival of the Arts, Marblehead Counseling Center, Marblehead Counsel on Aging, Rotary Club of Marblehead Harbor, Marblehead Chamber of Commerce, Marblehead Historical Society, Marblehead Garden Club, Driftwood Garden Club, as well as members of the Corinthian Yacht Club and Tedesco Country Club. Heather is also a 5-time rider in the Pan Mass Challenge in support of Dana Farber and the Jimmy Fund. When they are not working; Mary and Heather enjoy spending leisure time in Marblehead, sailing, gardening, and golfing in the summer, and in the winter, months getting away for some skiing.