Roy P. Giarrusso

Environmental Litigation

We are well known for our successful handling of complex environmental litigation matters for major corporations, project developers and property owners throughout New England. The legal disputes that our clients encounter typically involve complex government regulations and agencies such as the federal Environmental Protection Agency (EPA) and Massachusetts Department of Environmental Protection (DEP) in both Superfund sites and Massachusetts Chapter 21E sites. In many cases, our clients are asked to clean up the mess that other corporations left behind, including contaminated groundwater, soil or drinking water; indoor air issues or “sick building” cases caused by toxic fumes; improper disposal of hazardous materials; or undisclosed land and property damage prior to purchase of property. These matters include:

  • Defense of government enforcement proceedings under CERCLA, RCRA, the Clean Water Act, the Clean Air Act, Chapter 21E and comparable State Superfund laws
  • Federal and State Superfund cost recovery and contribution actions, in appropriate circumstances on a contingent fee basis
  • Environmental contract disputes, including those related to indemnification and insurance recovery
  • Environmental qui tam actions
Our representation routinely involves developing strategies to:
  • Minimize clean-up and remediation costs
  • Identify options and potential targets to recover clean-up and remediation costs
  • Develop allocations of costs among responsible parties
  • Develop potential settlement strategies where warranted
  • Negotiate with government agencies at both the State and Federal levels such as the United States Department of Justice (USDOJ)
  • Prosecute and defend cost recovery and contribution actions

We are a boutique litigation firm with the experience in a wide range of environmental matters to handle substantial cases for large corporations, including the world’s largest solid waste company and the country’s largest defense contractor. We also specialize as PRP group counsel in Superfund cost recovery and contribution actions, one of the very few firms in the nation with the requisite experience and success to provide such legal services in this nuanced area of law on a contingency fee basis.

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Roy P. Giarrusso has distinguished himself as an exceptional environmental trial attorney. New England counsel to the largest solid waste management company in the U.S. for hazardous waste enforcement and litigation matters and retained environmental litigation counsel to several Fortune 100 companies, he has successfully represented clients in virtually every Federal Superfund site in New England. Mr. Giarrusso is recognized as an expert in environmental cost recovery/contribution actions, making him the counsel of choice for PRP groups to prosecute such claims against non-settling or recalcitrant third parties. His excellent reputation among his peers has earned Mr. Giarrusso an AV rating from Martindale-Hubbell, the highest rating possible. His peers have voted him a Massachusetts Super Lawyer – Environmental Litigation and a New England Super Lawyer – Environmental Litigation, selected him for inclusion in the Best Lawyers in America for Environmental Litigation, and he is a Fellow, Litigation Counsel of America.



Marina Bay
308 Victory Road
Quincy, MA 02171


Suffolk University Law School, Boston, Massachusetts
J.D., Doctor of Jurisprudence – 1987

Middlebury College, Middlebury, Vermont
B.A., Bachelor of Arts – 1983

Bar Admissions

Massachusetts, 1987
U.S. Court of Appeals 1st Circuit, 1988
U.S. District Court District of Massachusetts, 1988
U.S. Supreme Court, 1992

Professional Associations and Memberships


Former Lecturer, Environmental Law and Litigation – Adjunct Professor, Suffolk University Law School

Honors and Awards

Abigail Hogan

Abigail Hogan is a litigation associate with a particular focus on state and federal environmental litigation and commercial litigation. Ms. Hogan is admitted to practice in Massachusetts’ state and federal court. Ms. Hogan is a cum laude graduate of Vermont Law School where she served as a Symposium Editor on the Vermont Journal of Environmental Law. She recently completed the MCLE Trial Advocacy workshop.

Ms. Hogan also served as a law clerk intern to the Honorable William G. Young at the United States District Court for the District of Massachusetts. During law school, she interned with Conservation Law Foundation, spearheading the creation of the Rhode Island chapter of the Legal Food Hub. She additionally worked with a solo practitioner in Vermont practicing novel environmental justice issues within the National Environmental Policy Act. Prior to law school, Ms. Hogan graduated from Villanova University with a degree in political science and a minor in Spanish.

Bar Admissions

Massachusetts, 2021
U.S. District Court District of Massachusetts, 2021


Vermont Law School, South Royalton, Vermont
J.D., Juris Doctor – 2020

Villanova University, Villanova, Pennsylvania
B.A., Bachelor of Arts, Political Science – 2017