Mary Kelleher Real Estate Agent at Gibson Sotheby's International Realty

Mary Kelleher

Real Estate Agent at
Gibson Sotheby's International Realty

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Browse homes for sale in markets that Mary serves

Agent Highlights

Mary has great Condo experience - having sold 128 more condos than the average agent.

Mary's Transactions

  • Milton, MA
    Condominium
    Buyer
    $1,370,000
    07/23/2026
  • Braintree, MA
    Single Family Home
    Buyer
    $769,300
    10/30/2025
  • Quincy, MA
    Condominium
    Seller
    $679,000
    08/30/2024
  • Boston, MA
    Single Family Home
    Seller
    $3,700,000
    11/16/2023
  • Boston, MA
    Co-Op
    Seller
    $519,000
    11/15/2023
  • Boston, MA
    Condominium
    Seller
    $1,315,000
    10/20/2023
  • Quincy, MA
    Condominium
    Seller
    $612,000
    08/29/2023

More about Mary Kelleher

A top producer at Gibson Sotheby’s International Realty, Mary Kelleher has over 32 years experience in real estate in Boston. She founded Boston Bay Realty, a residential marketing firm in 1983, quickly establishing long term relationships with many of Boston’s top developers. Over the span of her career she has marketed numerous condominium projects pre-construction at record breaking prices. In 2008 with an emphasis on combining green elements and the latest of new technology Mary marketed 79 Chandler St. a 9 unit boutique building in the South End at record breaking prices with high acclaim. Her most recent successes include a second phase at the 48 unit Allele building which is now 100% sold out and a boutique development is 32 Rutland St, with 6 ultra luxurious condominiums in the South End. The loyalty of her clients is a testimony to her energy, dedication and commitment. Mary devotes much of her time to a variety of charities. She is Board President of Project Place,
License Number

0000127163

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Mary Kelleher