Michael J. Quinn headshot
100 Arboretum Drive
Suite 140
Newington, NH 03801
Tel: 603 334 6925

Michael J. Quinn

Director, Administrative Law and Litigation Departments and Managing Director Portsmouth Office

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Michael is a member of the firm's Administrative Law and Litigation Departments.  He is also the managing director of the firm's Portsmouth office.  He was selected for inclusion in the 23rd Edition of The Best Lawyers in America for his work in both Environmental Law and Environmental Litigation, and was chosen by that publication as "Lawyer of the Year" for Environmental Law for 2017.

Mike's practice focuses on cases in state and federal courts, as well as on administrative appeals. In addition, he represents businesses, municipalities, and individuals in a broad array of environmental matters including Wetlands and the Clean Water Act, Superfund, hazardous and solid waste permitting and compliance. He has extensive experience in litigation, cost recovery and insurance claims arising from former operation of manufactured gas plants.

Mike received his J.D. from the University of Maine (1988) and his B.A. from St. Lawrence University (1983).

Areas of Focus

  • Energy, Utilities and Telecommunications
  • Environmental Law
  • Government Relations
  • Insurance


  • N.H. Bar Association, United States District Court, District of New Hampshire, First Circuit Court of Appeals


  • Ranked in Chambers USA: A Guide to America's Leading Lawyers 2021 (Environmental)
  • Best Lawyers in America 2020 (Environmental Law, Litigation - Environmental)
  • Lawyer of the Year 2019 and 2017 in Best Lawyers in America (Environmental Law)
  • BV Peer Review Rated, Martindale-Hubbell
  • Fellow, New Hampshire Bar Foundation


  • Environmental Business Council of New England, New Hampshire Chapter Leadership Team
  • New Hampshire Bar Foundation, Member
  • New Hampshire Corporate Wetlands Restoration Partnership, Secretary
  • Former Chair, New Hampshire Bar Association Section on Natural Resources and Environmental Law
  • Former Trustee of Heronfield Academy
  • Former President, Seacoast Chapter of the American Red Cross
  • Former President, Board of Directors of the Seacoast Family YMCA
  • Former Chairman, New Hampshire Bar Association Natural Resources and Environmental Law Section
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Practice Areas

The strengths of our practice groups and the industries we serve make McLane Middleton one of the most diverse law firms in New England.

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At McLane Middleton we establish and maintain long-standing relationships with our clients to help us better achieve their unique goals over time. This approach to building trust requires that our esteemed lawyers and professionals use their broad, in-depth knowledge and work together with integrity to ascertain sound resolutions to legal matters for their clients.

Strength in numbers

McLane Middleton is made up of more than 105 attorneys who represent a broad range of clients throughout the region, delivering customized solutions. As a firm we are recognized as having the highest legal ability rating. The firm is rated Preeminent by Martindale Hubbell and is recognized as one of the nation's leading law firms in Chambers USA. Our attorneys are distinguished leaders in their respective practice areas.

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McLane Middleton's versatile group of attorneys and paralegals become trusted authorities on each case through collaboration. We work with our clients to learn their individual needs first and foremost and, together, we develop comprehensive solutions to their specific legal matters. This approach helps us exceed our clients' expectations efficiently and effectively, client by client, case by case.

Practice Areas

A history of excellence

McLane Middleton was established in 1919 in New Hampshire, and has five offices across two states. However, deep historical roots don't allow you to become innate. Our firm is organized, technological, and knowledgeable. Our history means we are recognized. But our reputation is built on the highest quality of service and experience in very specific areas of law.

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Intelligence paired with action

Our team continuously seeks opportunities to enhance their professional development and put key learnings to action. The pursuit of further insight guides us to volunteer service opportunities, speaking engagements, and teaching roles. Our lawyers are sought after thought leaders across their industries, and recipients of leadership awards throughout the region.