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About me

Patrick J. Heffernan is a graduate of Connecticut College and New England School of Law and he is licensed to practice law in both Massachusetts and Maine.

Attorney Heffernan began his legal career as a Paralegal in the Criminal Appeals Division of the Massachusetts Attorney General’s Office. During his tenure at the Attorney General’s Office, Attorney Heffernan gained exposure to a vast array of criminal law issues and spent several months assisting with the legal research for the United States Supreme Court case Melendez-Diaz v. Massachusetts.

At New England School of Law, Attorney Heffernan received a Dean’s Scholarship and was recognized for his achievements earning Dean’s List Honors each semester. While attending law school, Attorney Heffernan’s gained valuable legal experience working in Enterprise and Major Crimes Division of the Massachusetts Attorney General’s Office as well as the Roxbury District Court Unit and the Domestic Violence and Sexual Assault Unit of the Suffolk County District Attorney’s Office.

Additionally, Attorney Heffernan had the privilege of serving as the Editor-in-Chief of the New England Journal on Criminal & Civil Confinement. The New England Journal on Criminal and Civil Confinement is one of the nation’s top criminal law journals addressing the major constitutional and policy issues in the areas of criminal justice and civil confinement.

Attorney Heffernan grew up on the North Shore of Boston and currently resides in Salem, Massachusetts.


Practice areas


  1. Criminal Defense: 75%
  2. Family: 25%



Hourly ($150-250/hour), Fixed (always)

Payment types:

Cash, Check

Attorney endorsements

9 total 

Are you an attorney? Endorse this lawyer

  • Joseph John Higgins III

    I have known Attorney Heffernan for nearly a decade. He is a hard-working, conscientious, and skilled practitioner. If you are looking for an attorney to address your particular legal issue, Attorney Heffernan possesses the knowledge, skills, and resources to help you out. It is my pleasure to professionally endorse him.


    Joseph Higgins DUI and DWI Attorney
    Relationship: Fellow lawyer in community

  • Howard M Lewis

    I endorse this lawyer. Attorney Heffernan is an outstanding attorney with a great reputation. He is a strong and zealous advocate for his clients and a credit to the legal profession. I highly recommend his legal services.


    Howard Lewis Divorce and separation Attorney
    Relationship: Fellow lawyer in community

Contact info

The Law Office of Patrick J. Heffernan

221 Essex Street
Suite 51
Salem, MA, 01970-2363


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Dean's List Honors (all semesters)New England Law BostonN/A
Work experience
TitleCompany nameDuration
Legal Intern, Domestic Violence and Sexual Assault UnitSuffolk County District Attorney's Office2012 - 2012
Editor-in-ChiefNew England Journal On Criminal & Civil Confinement2011 - 2012
Student Prosecutor, Roxbury District CourtSuffolk County District Attorney's Office2011 - 2011
Legal Intern, Enterprise and Major Crimes UnitOffice Of The Massachusetts Attorney General2010 - 2010
Paralegal, Criminal Appeals DivisionOffice Of The Massachusetts Attorney General2007 - 2009
Association namePosition nameDuration
Essex County Bar AssociationN/A2013 - Present
Massachusetts Bar AssociationN/A2012 - Present
Maine State Bar AssociationN/A2012 - Present
Publication nameTitleDate
Salem Criminal Law CommentariesMarijuana in Massachusetts: You still can’t grow it, but you may be able to pass it.2013
School nameMajorDegreeGraduated
New England Law BostonLawJD - Juris Doctor2012
Connecticut CollegeHistoryBA - Bachelor of Arts2007