Mary-Kathleen O'Connell

4.5 (31 reviews )

Boston Massachusetts United States

Trusts and Estates

Recognized in Best Attorney USA since 2005

617-570-1000 Website

About Mary-Kathleen

Mary-Kathleen O'Connell is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates.Mary-Kathleen, who practices law in Boston, Massachusetts, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mary-Kathleen is held by other top lawyers in the same geographic and legal practice area.

Mary-Kathleen O'Connell is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates.

Mary-Kathleen, who practices law in Boston, Massachusetts, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mary-Kathleen is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Trusts and Estates

Education

New York University

Awards & Recognition

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Reviews

4.5 / 5

31 Reviews

1,013 Profile Views

Nettie Kassulke

Feb 02, 2026

A huge weight off my shoulders thanks to the amazing work of Mary-Kathleen O'Connell

I've already told all my friends and family about Mary-Kathleen O'Connell. If you need Trusts and Estates law help in Massachusetts, they're the ones to see without any doubt. They are local experts w...

Harvey Hessel

Feb 02, 2026

So glad I called Mary-Kathleen O'Connell to handle my Trusts and Estates law case in Boston

I wasn't sure who to call for my Trusts and Estates law problem, but I'm so glad I went with Mary-Kathleen O'Connell. They really listened to me and understood my situation. It was such a relief to ha...

Mindy Anderson

Feb 02, 2026

Really helpful and compassionate service from everyone at Mary-Kathleen O'Connell's firm

Just wanted to say a huge thanks to Mary-Kathleen O'Connell and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without...

Jessica Bruen

Feb 02, 2026

Great people who truly care at Mary-Kathleen O'Connell - the best legal team in Massachusetts

Everyone at Mary-Kathleen O'Connell's office in Boston was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never fel...

Tammy Hodkiewicz

Feb 02, 2026

Solid work and professional service from Mary-Kathleen O'Connell in Boston for Massachusetts residents

I appreciate how Mary-Kathleen O'Connell handled my case. No fluff, just straight to the point and very effective representation for my Trusts and Estates law matter. They are obviously very experienc...