About Mary Kaminski

Your Trusted Cape Cod Real Estate Expert

As a distinguished member of the O’Neill Group, Mary Kaminski is a leading real estate agent serving the Cape Cod area. Known for her exceptional service and unwavering commitment to the community, Mary has earned recognition as a top producer by both Real Trends and Berkshire Hathaway Home Services. Her reputation for excellence and attention to detail sets her apart in the competitive real estate market.

Whether you're a first-time homebuyer or navigating the complexities of luxury waterfront properties, Mary is your go-to expert. Her extensive knowledge combined with a dedication to client satisfaction, ensures that every transaction is seamless and stress-free.

Beyond her professional success, Mary is deeply engaged in the Cape Cod community. She serves on several committees for the Upper Cape YMCA. Mary is committed to supporting the YMCA's mission to build a better future for the community.

When she’s not working, you’ll likely find Mary swimming year-round in Cape Cod's beautiful bays and ponds—no matter the water temperature! She participates in numerous fundraising swims, benefiting causes such as the Buzzards Bay Coalition and David’s Swim for ALS, reflecting her deep commitment to giving back to the community she loves.

Choose Mary Kaminski for your next real estate venture and experience the perfect blend of professional expertise and personal care. Whether buying or selling, she’s ready to help you achieve your real estate goals at any price point.

Designations and Professional Associations:

• According to Real Trends’ rankings, the team closed a total of $45,698,458 in 2023.  This performance placed them at 45th in the state of Massachusetts for sales volume among small teams. 

• 10 Million Dollar Club, Berkshire Hathaway Home Services, 2022-2023, 2023-2024

• Certified Senior Residential Specialist (SRES)

• Certified Accredited Buyer Representative (ABR)

• Board member of the Capital Campaign for the Don and Doris Smith YMCA