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Sean is a partner and founder of the firm, O'Connor, Carnathan and Mack, whofocuses his practice in complex business litigation. He has been litigating since 1993 and hasappeared in state and federal courts all over the country. He has substantial experience with director,officer and shareholder litigation, trust fund litigation and insolvencyrelated litigation. Sean has alsoprosecuted a number of significant claims for unpaid wages and has helpedsecure recoveries for clients which, in the aggregate, exceed $1.3 million. He regularly advises corporate executives intransition regarding their employment contracts and non-competeobligations. Sean is a regularcommentator on legal issues and has published many articles over the years.
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33 years
Free Consultation
$0 first 30 minutes
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Chat withState: Massachusetts
Acquired: 1997
No misconduct found
State: Maine
Acquired: 1993
No misconduct found
Landmark One, 1 Van der Graaff, Suite 104, Burlington, MA, 01803
Showing 1 - 3 of 3 client reviews from Avvo
Posted by anonymous | February 24, 2018 | Hired Attorney
I consulted Sean regarding a multi-party corporate dispute. He was quick to respond and offered to take my case on contingency. He took a chance on my case and worked diligently on it for over a year. Through this time, he was professional, communicative, and efficient. This was my first time working...
Posted by Doug | September 9, 2010
Without question I would recommend Sean Carnathan as a great Attorney and this is why. This is a must read. I went to several different lawyers (before Sean) who told me that because my Dad passed away and left the majority 51% of his Company to my Step Mother that my Sister and I were more or l...
Posted by anonymous | August 26, 2010
I hired Attorney Carnathan to provide counsel in an out-of-state LLC ownership dispute and my experience with him was exceptional. His knowledge of corporate law, ability to effectively negotiate, and his realistic advice on the probable outcome of the dispute was invaluable throughout the process a...
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2017
Litigation -- Trusts and Estates, Best Lawyers in America
2016
Super Lawyer, Thomson Reuters
2016
Litigation -- Trusts and Estates, Best Lawyers in America
2015
Super Lawyer, Thomson Reuters
2014
Super Lawyer, Thomson Reuters
2013
Super Lawyer, Thomson Reuters
2012
Super Lawyer, Thomson Reuters
2011
Super Lawyer, Thomson Reuters
2010
Super Lawyer, Thomson Reuters
2010
Fellow, Litigation Counsel of America, Trial Lawyer Honorary Society
2010
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell
2009
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell
2009
Super Lawyer, Thomson Reuters
2008
Super Lawyer, Thomson Reuters
2008
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell
2007
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell
2006
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell
1998 - 2003
Junior Partner (Associate through 2000), WILMERHALE
1997 - 1998
Ames Fellow, Harvard Law School
1993 - 1994
Law Clerk to the Hon. Paul L. Rudman, Maine Supreme Judicial Court
2004 - Present
American Bar AssociationEditor, Litigation News
1997
LL.M - Master of Laws
1993
JD - Juris Doctor, summa cum laude
1986
A.B., magna cum laude
2017
Practical Tips on Policyholder Claims for Insurer Bad Faith
2014
Remedies in a Close Corporation or Family-Held Business Dispute
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English