Mary Ann Agostini

Mary Ann Agostini

Broker Associate ®

Mary Ann Agostini
  • M
Old Lyme
103 Halls Road
P.O. Box 489
Old Lyme, CT 06371

About Me About Me

Mary Ann has over 35 years of Real Estate experience in residential and commercial sales, and management throughout Connecticut and Rhode Island. Her insight, fortitude, and attention to detail has helped to bring Buyers and Sellers together over the years, and continues to create opportunities for follow up generations.

Business Philosophy

Mary Ann believes that today's Buyer will be tomorrow's Seller, her business model has been to follow that concise ethical mantra and offer the ultimate in personalized service, whether that may mean "meeting the moving van or providing dinner that first evening in your new home." Service is her "Number One Concern"


Mary Ann has positioned herself as a purveyor of the most up to date real estate information as well as experience. She has brought together many different clients, helping all to fulfill their personal goals. From Westerly, Rhode Island to Westport Connecticut, her experience shows in her ability to adapt and present for her clients. 


Mary Ann has been a volunteer for the Connecticut River Museum, Covenant Shelter of New London, Riverfront Children's Center of Groton, Masonicare, and Forgotten Felines, she is also certified to volunteer for York Correctional, she was awarded the Berlin Chamber of Commerce Community Service Award in 1991 and named Employer of the Year in 2007 by the Mystic Chamber of Commerce.


BA - Sociology, MS Human Services

Licensed in Connecticut and Rhode Island


"Being in business has taught me an important lesson. When you need someone to display outstanding performance in any field you must pick the right person. When it comes to selling or searching for real estate Mary Ann has an outstanding ability to fulfill any challenge. She sold many of my properties, residential and commercial. She also acted as an Intermediary in a 1031 exchange of like kind properties. Mary Ann's competence has earned her this strong recommendation" WB, Vero Beach, Florida.



  • Languages Spoken English, Polish
  • Born In Connecticut
  • Lives In East Lyme
  • Favorite Movie Mama Mia
  • Passion Educational opportunities
  • Interests WSJ, Investors Business Daily , Golfing, Traveling, Boating, Animal Rescue
  • Favorite Lyric Hello Dolly
  • Inspiration Dale Carnegie
  • Can't Live Without Belgium Chocolate Ice Cream

Agent Designations

  • Accredited Buyer Representative
  • Senior Real Estate Specialist (SRES)
  • Licensed Associate Real Estate Broker

My Awards

  • 1991 Berlin Community Service Award
  • Berlin Chamber of Commerce
  • Mystic Chamber 2007 Community Employer Award
  • Bronze and Silver Awards
  • William Pitt Sotheby's
  • #1 Producing in Rentals, Old Lyme Brokerage, 2020

My Listings and Sales

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Testimonials (3)

Mary Ann is the reason I am with you she is exceptional Threadmill Partners LLC
I only know Maryann Agostini she is a superb professional i would not hesitate to recommend her to anyone I have known her for many years now Threadmill Master Tenant LLC, c/o POKO Mgmt Corp
Very good group to work with when apartment hunting. Wayne and Phyliss Caliento

Additional Communities


Mary Ann Agostini in the News

The Day

Friends & Neighbors: Sotheby’s International Realty agents honored with awards…

The New York Times

Living In–Stonington, Conn.: A Waterfront Community With a Colonial Vibe…

Contact Me

  • Mary Ann Agostini

    Mary Ann Agostini

    Broker Associate ®
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