Combining more than 30 years of experience in environmental and commercial real estate law, Mark Beliveau works with clients to successfully manage environmental risk in the context of business operations, transfer and development of real estate and commercial transactions. Mark has extensive experience advising clients on state and federal environmental permitting, compliance and enforcement issues, soil and groundwater remediation, Brownfields, Superfund, and water resources. Mark has creatively found solutions to environmental problems by working constructively with responsible parties and regulators, by drafting and guiding legislation and, when necessary, by seeking relief through the courts.

Since his graduation from law school, Mark has counseled responsible parties in the investigative, remedy selection, allocation, settlement, remedial action and litigation phases associated with environmental matters and has served as chairman of PRP groups at three multi-party Superfund sites. Mark was been instrumental in obtaining cost-saving innovative remedies and settlement terms for his clients.

At the intersection of environmental and real estate law, Mark works with developers, buyers, sellers and lenders in all aspects of the development and transfer of real estate, including contracting, zoning and planning board approvals, New Hampshire Site Evaluation Committee approvals, leasing, environmental due diligence, environmental site assessments, risk allocation and permitting.

Mark was the managing partner and CEO of the Hampton, New Hampshire law firm Sanders & McDermott before joining Pierce Atwood in 2003. At Sanders, he was the practice manager for that firm's Environmental and Real Estate practices.

Honors & Distinctions
  • Listed in The Best Lawyers in America® for Environmental Law (since 2007) and Land Use and Zoning Law (since 2013)
  • Recognized by Chambers USA for Environmental Law
  • Named “Environmental Law Lawyer of the Year” for the Manchester, New Hampshire area by Best Lawyers in America® for 2012 and 2021
  • Named to New Hampshire Magazine's list of New Hampshire's top attorneys
Professional Activities
  • Member, American Bar Association and Section on Environment, Energy and Resources
  • Member, New Hampshire Bar Association
  • Fellow, New Hampshire Bar Foundation
  • Beliveau, Mark.  Institutional Controls in New Hampshire. Implementing Institutional Controls at Brownfields and Other Contaminated Sites, American Bar Association, Second Edition, May 2012. 
  • Beliveau, Mark. Environmental Permitting: The Role of Local Officials. New Hampshire Municipal Law Lecture Series, 2006.
  • Beliveau, Mark. Water, Wetlands and the Role of Local Government. New Hampshire Municipal Law Lecture Series, 2003.
Civic Activities
  • Member, Town of Lee, New Hampshire Planning Board, 1990 – 2001 and 2008 - present

Practice Areas

Representative Experience
  • Assisting with the investigation, acquisition, remediation and reuse of Brownfields sites
  • Leading groups of Potentially Responsible Parties at federal and state Superfund sites in New England and representation of parties at sites outside of New England
  • Working with lenders on issues arising out of the foreclosure of mortgages on contaminated property  
  • Assistance and counsel on acquisition and development of new groundwater sources
Representative Experience
  • Representation before the New Hampshire Site Evaluation Committee on behalf of Petitioners and Intervenors regarding development and operation of energy facilities
Representative Experience
  • Permitting assistance at the federal, state and local level for complex real estate projects
  • Due diligence for the acquisition and sale of commercial facilities