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About me

Isaac Mass is a dedicated and zealous advocate for clients throughout Massachusetts and Vermont. He brings his knowledge and practical experience to bear inside and outside of the courtroom on behalf of his clients. Committed to providing excellent legal representation with responsiveness and communication, Attorney Mass works candidly with clients at the outset of any matter to identify the client’s objectives and chart a strategic course to optimize the chance of achieving those goals.


Practice areas


  1. Personal Injury: 25%
  2. Family: 25%
  3. Criminal Defense: 20%
  4. Real Estate: 20%
  5. Estate Planning: 10%


Payment types:

Check, Credit card

Attorney endorsements

2 total 

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  • Lakota Robin Denton

    I endorse this lawyer.


    Lakota Denton Personal injury Attorney
    Relationship: Fellow lawyer in community

  • No photo

    I went to law school with Isaac, and I have worked with him at the District Attorney's Office. I have known him to be very professional, attentive to detail, and diligent. He is adept at handling legal matters in a variety of fields. In addition, if I have a question on one of my cases, he is always more than willing to assist me. He is reasonable, a hard worker, and an excellent legal writer.


    Elizabeth Sweeney
    Relationship: Worked together on matter

Contact info

Law Office Of Isaac J. Mass

278 Main Street., Suite 411
P.O. Box 832
Greenfield, MA, 01302


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
40 Under 40BusinessWest Magazine2013
Distinguished Alumni AwardGreenfield Community College2012
ALI-ABA Award for Scholarship and LeadershipAmerican Law Institute and American Bar Association2011
Excellence for the Future Award - Business PlanningCALI2011
Dean's AwardWestern New England University School of Law2011
Best Overall TeamTransactional Lawyering Meet2011
Excellence for the Future Award - ConractsCALI2009
Work experience
TitleCompany nameDuration
Attorney at LawLaw Office of Isaac J. Mass2011 - Present
Association namePosition nameDuration
Massachusetts Bar AssociationN/AN/A
Massachusetts Bar Association, Property Law SectionBoard MemberN/A
Real Estate Bar Association for MassachusettsN/AN/A
Franklin County Bar AssociationN/AN/A
School nameMajorDegreeGraduated
Western New England College School of LawLawJD - Juris Doctor2011
Speaking engagements
Conference nameTitleDate
GSB Community MeetingFranklin County and the Law2014
Greenfield SALT MeetingConsumer Protection2013
Nertheast Transactional Lawyering MeetTransactional Lawyering Judge2012
Liberty Driving SchoolWhat to do if You Are Stopped by the Police2012
Liberty Driving SchoolWhat to do After an Accident2012
Liberty Driving SchoolWhat to do if You Are Stopped by the Police2011
Liberty Driving SchoolWhat to do After an Accident2011