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Justin F. Keith represents employers in all areas of labor and employment law—including reductions in force, litigation of discrimination, harassment, whistleblower, and retaliation claims, and numerous other personnel and workplace issues—before state and federal agencies and in courts throughout the country.

Justin Co-Chairs the firm’s Labor & Employment Practice’s Labor-Management Relations group and advises clients in all areas of traditional labor law, including union organizing campaigns, collective bargaining negotiations, unfair labor practice charges and representation case proceedings before the NLRB, union avoidance strategy and training, strike response and contingency planning, grievance arbitration proceedings, and appellate litigation before the NLRB and the Courts of Appeals. Justin was co-counsel to New Process Steel in the landmark Supreme Court case, New Process Steel v. NLRB, 560 U.S. 674 (2010). He is also a contributing editor of The Developing Labor Law, the leading treatise on U.S. labor law, and a frequent speaker to legal and industry groups on labor and employment issues.

Justin has litigated dozens of wage and hour class actions brought under the Massachusetts Wage Act and nationwide collective actions under the Fair Labor Standards Act. He represents employers across a broad spectrum of industries, including retail, transportation, delivery services, and telecom services in nationwide class and collective actions brought throughout the country.

Justin regularly provides counsel to senior management and human resource personnel on employment law compliance matters, such as reductions in force, leaves of absence, exempt status classification under the FLSA and state law, employee discipline, sexual harassment, discrimination and retaliation, and restrictive covenant agreements.



  • Legal Intern, Boston Public Health Commission
  • Legal Intern, Community Catalyst

Recognition & Leadership

  • Listed, The Best Lawyers in America, Labor Law - Management, 2022 
  • Listed, The Legal 500 United States, 2016-2018, 2020 and 2021
    •  Labor and Employment Disputes (Including Collective Actions): Defense, "Other Key Lawyer," 2022
  • Listed, Chambers USA Guide, 2019
    • "Up and Coming," 2019
    • "Associates to Watch," 2014-2016
  • Listed, Super Lawyers magazine, Massachusetts Super Lawyers, 2013-2016 and 2018-2021
    • "Super Lawyers," 2018-2021
    • "Rising Stars," 2013-2016
  • Team Member, a Law360 "Employment Practice Group of the Year," 2011 and 2013
  • Member, American Bar Association, Labor and Employment Law Section
  • Member, Boston Bar Association
    • Co-Chair, Labor Subcommittee, 2011–2015
    • Member, Steering Committee, 2009-2015
  • Teacher, Citizen School, 2006


  • J.D., Northeastern University School of Law
  • B.A., Vanderbilt University
  • Massachusetts
  • Supreme Court of the United States
  • U.S. Court of Appeals for the First Circuit
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Third Circuit
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. Court of Appeals for the District of Columbia Circuit
  • U.S. District Court for the District of Massachusetts