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Sean T. Carnathan


O'Connor, Carnathan, and Mack LLC

Recognized since 2016

Burlington, Massachusetts

Practice Areas

Litigation - Trusts and Estates

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Founder and managing partner of litigation law firm based in Burlington, Massachusetts. Substantial trial experience. In addition to being listed in Best Lawyers in America, Trusts and Estates Litigation since 2016, Mr. Carnathan has long been rated Preeminent by Martindale Hubbell and has been a Boston Magazine “Super Lawyer” every year since 2008.

Location

  • 67 South Bedford Street, Suite 400W
    Burlington, MA 01803

Education

  • University of Maine, J.D., graduated 1993
  • Bowdoin College, AB, graduated 1986

Bar Admissions

  • Maine, 1993
  • Massachusetts, 1997
  • New Hampshire, 2014

Affiliations

  • Massachusetts Board of Bar Overseers - Hearing Officer
  • O'Connor, Carnathan and Mack LLC - Managing Partner

State Clerkships

  • Maine - Supreme Court

Recognized in The Best Lawyers in America® 2022 for work in:

  • Litigation - Trusts and Estates

Awards:

  • Massachusetts Super Lawyers, 2008-Date

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Chancery Court Awards $1.263 Billion in Derivative Action


In a recent decision that may be a cautionary tale to Delaware corporations, the Court of Chancery of the State of Delaware awarded $1.263 billion to mining company Southern Peru Copper Corporation in a shareholder derivative action.

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Sean T.

Carnathan

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