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

1,014 Profile Views

Jeannette Macejkovic

Feb 02, 2026

Excellent legal representation provided by Mary-Kathleen O'Connell for my Trusts and Estates law case

Best lawyer for Trusts and Estates law in Boston. Period. I've seen others, but Mary-Kathleen O'Connell is on another level. They truly care about their clients and work hard to get the best results....

Lee Keebler

Feb 02, 2026

Reliable lawyer you can count on - Mary-Kathleen O'Connell provided excellent service throughout

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...

Arnold Padberg

Feb 02, 2026

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

Mary-Kathleen O'Connell has been doing this since Recognized in Best Lawyers since 2005, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with m...

Betsy Heaney

Feb 02, 2026

Absolutely Great! I couldn't be happier with the service from Mary-Kathleen O'Connell

Mary-Kathleen O'Connell is fantastic and very professional. Don't hesitate to hire them if you're in Massachusetts and need help. They really know their stuff and will go the extra mile to make sure y...

Emilio Morar

Feb 02, 2026

Outstanding experience with Mary-Kathleen O'Connell in Boston - truly the best legal team

If you're looking for someone who actually cares and will fight for you, go to Mary-Kathleen O'Connell. They helped me out big time with my Trusts and Estates law issue and kept me informed at every s...