Patrick C. Closson headshot
900 Elm Street
10th Floor
Manchester, NH 03101
100 Arboretum Drive
Suite 140
Newington, NH 03801
Tel: 603 628 1457

Patrick C. Closson

Director, Chair of Corporate Department and Chair of Healthcare Group

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Patrick is a corporate and transactional lawyer who helps clients form, grow, and sell their businesses, and works with his clients to solve challenging problems with practical solutions. Patrick works with clients in five main areas: general corporate law, healthcare law matters, mergers and acquisitions, complex contracts, and succession planning.  

Throughout his career, Patrick has represented private companies and their owners on a wide variety of corporate law matters including entity formation, private security offerings, negotiation of complex contracts and general corporate governance.  He continues to serve as outside general counsel for private companies throughout New England.

As chair of the firm’s Healthcare Practice Group, Patrick and his team support physicians, physician group, dentists and other professionals in governance, compliance and acquisition and sale transactions. Noteworthy healthcare transactions include representing a healthcare client in negotiations of a $550 million Medicaid managed care contract, and representing the New Hampshire Attorney General’s Office in connection with the review of a one billion dollar hospital merger transaction. Patrick currently represents several large independent physician and dental practices.

Patrick also represents a variety of clients with complex transactions and contracts, including clients in the manufacturing, medical device, defense, high technology, financial services, energy and wholesale food industries.

According to Chambers and Partners, "Patrick Closson is an impressive corporate attorney with experience in transactions arising from regulated industries such as financial services, as well as real estate matters. He is held in high regard by peers, one of whom states they've 'always been very impressed with his practice and knowledge base.'"

Patrick is a former member of the firm's Management Committee.

Patrick received his J.D. from Boston College Law School (1998) and his B.A., Summa Cum Laude, from the University of New Hampshire (1995).

Areas of Focus

  • Corporate Business Law
  • Healthcare Law
  • Mergers & Acquisitions
  • Outside General Counsel
  • Complex Contracts


  • New Hampshire
  • Massachusetts
  • Maine
  • New Hampshire Bar Association, member and past co-chair of the Corporation, Banking & Business Law Section and the Health Care Law Section
  • American Bar Association, Business Law Section


  • Ranked in Chambers USA: A Guide to America's Leading Lawyers (2021 - Corporate/Commercial and Healthcare)
  • Best Lawyers in America (2014 - 2022) (Corporate Law, Health Care Law, Mergers and Acquisitions Law)
  • 2022 Lawyer of the Year by Best Lawyers in America (Mergers and Acquisitions Law)
  • 2020 Lawyer of the Year by Best Lawyers in America (Corporate Law) 
  • New England Super Lawyer since 2014; "Rising Star" 2009-2013
  • BV, Peer Review Rated, Martindale-Hubbell
  • NH Business Review - 2018 Business Excellence Awards
  • Business and Industry Association of New Hampshire 2012 Above and Beyond Award
  • Boston College Law School Alumni Award
  • Graduate of Leadership New Hampshire (2016)
  • Graduate of Leadership Seacoast (2008)



  • American Bar Association's Corporate Law Committee - NH State Liaison
  • Business and Industry Association, Executive Board
  • Leadership New Hampshire, Board of Directors


  • University of New Hampshire Alumni Association Board of Directors, past chair
  • University of New Hampshire President Search Committee member
  • New Hampshire Bar Association - Health Law Section (Co-Chair)
  • Leadership Seacoast, Past Chair, Board of Directors
  • Business and Industry Association Ad Hoc Committee on the New Hampshire Business Corporations Act (Chair)
  • Greater Portsmouth Chamber of Commerce Government Affairs Committee (past Chair)
  • New Hampshire Board of Accountancy
  • City Year New Hampshire Site Board of Directors (past Vice Chair)
  • Child and Family Services, Seacoast Board of Directors (past Chair)
  • Boston College Law School Alumni Council
  • New Hampshire Bar Association Leadership Conference Steering Committee
  • Leadership Seacoast Class of 2008
  • University of New Hampshire, Lecturer 
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Representative Transactions

  • Sale of a multi-office dental practice
  • Acquisition of an international healthcare claim management company
  • Sale of international market research company to management group
  • Reorganization and merger of food distribution company
  • Sale of multi-office medical imaging company
  • Sale of investment advisory/broker-dealer compliance company
  • Sale of leading self-insurance company
  • Sale of engineering firm
  • Sale of equipment and tent rental business
  • Sale of life science staffing company
  • Sale of a contract manufacturing company in the medical device industry
  • Sale of technology staffing company
  • Sale of a regional mobile and fixed medical imaging company
  • Sale of multi-location hydroelectric business
  • Acquisition of technology company in the financial services industry for an international-based entity

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