Ethan Severance

Associate - Boston

Ethan Severance
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Contact Information


  • Northeastern University School of Law, J.D., 2017
  • Vermont Law School, Master of Environmental Law and Policy, 2017
  • State University of New York at Albany, B.A., 2011



Representative Experience

  • Advise multiple solar PV developers and investors on environmental and zoning regulatory issues that are part of the acquisition, development, and operation of solar projects in Massachusetts and throughout the United States. 
  • Represented a solar PV investor in connection with a dispute regarding alleged payments due from the purchase of a portfolio of solar projects, resulting in the negotiation of a favorable settlement on the eve of trial.
  • Represented owners of hydroelectric generation facilities with regard to Section 401 certifications under the federal Clean Water Act. 
  • Successfully appealed the issuance of a groundwater management permit for a Superfund site issued by the New Hampshire Department of Environmental Services in front of the New Hampshire Waste Management Council. 
  • Advised a PRP in a construction dispute with its environmental consultant in relation to the remediation and cleanup of a Superfund site. 
  • Advised an emerging cleantech technology company on potential environmental issues in its purchase of a former military installation.
  • Successfully represented medical marijuana patients in overturning the Massachusetts ban on medical marijuana vaping products. 
  • Obtained a favorable settlement for one of the largest Massachusetts cultural institutions in relation to a racial discrimination investigation by the Massachusetts Attorney General’s Office.  
  • Conducted an internal investigation for, and counseled the board of, a Boston-area cultural institution concerning allegations of racial discrimination. 
  • Conducted an internal investigation for, and counseled the board of, an international corporation concerning allegations of fraud by the CEO and other C-suite level executives. 
  • Represented Becton, Dickinson and Company and the University of California in a patent infringement litigation asserting multiple patents covering polymer dyes and their use in flow cytometry, resulting in the negotiation of a favorable settlement just before trial. 

Professional Experience

  • Clerked for the Honorable Sookyoung Shin of the Massachusetts Appeals Court


  • Honor, Massachusetts Supreme Judicial Court, 2019 Pro Bono Honor Roll (November 2020) 


  • Environmental Law Institute, Emerging Leaders Initiative  
  • Boston Bar Association, Environmental and Energy Law Section Steering Committee
  • Coordinator for the Mission Hill Community Garden


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Bar Admissions

  • Massachusetts
  • New Hampshire

Court Admissions

  • U.S. District Court for the District of Massachusetts
  • U.S. District Court for the District of New Hampshire