David J. Grimaldi

Attorney Profile

Top Rated Criminal Defense Attorney in Cambridge, MA

David J. Grimaldi, P.C.
929 Massachusetts Ave, Suite 200
Cambridge, MA 02139
Phone: 617-661-1529
Fax: 857-362-7889
Selected to Super Lawyers: 2020 - 2021
Selected to Rising Stars: 2016 - 2017
Licensed Since: 2007
Practice Areas: Criminal Defense
Attorney Profile

David J. Grimaldi founded his eponymous professional corporation in July 2014. Since that time, he has continued to focus his practice exclusively on criminal defense matters, representing clients throughout Middlesex, Norfolk, Suffolk, and Essex counties from the firm’s offices in Cambridge, Massachusetts. Mr. Grimaldi obtained his legal education at Boston College Law School, where he participated in regional and national mock trial competitions before obtaining his Juris Doctor in 2007. Prior to law school, he attended Clark University in Worcester, and he majored in European history and received a Bachelor of Arts magna cum laude in 2001.

Mr. Grimaldi’s clients are area residents and others who have been charged by the Commonwealth or by the federal government with the commission of felony or misdemeanor offenses. The cases that he has worked on have included rape and other sex crimes, armed and unarmed robbery, homicide, weapons violations, child pornography, assault and battery, weapons violations, white collar crimes, and drug possession and trafficking. Mr. Grimaldi has frequently been able to suppress evidence from being introduced at trial, and this has led to numerous dismissals and acquittals. On other occasions, he has negotiated favorable plea agreements with the prosecution. Mr. Grimaldi’s successful track record has led to a significant amount of recognition from his colleagues, including a 10.0 “Superb” peer-review rating through Avvo.

Mr. Grimaldi has often been invited to deliver presentations to groups of fellow attorneys on topics related to his practice area. In 2013, he expanded his knowledge through his participation in the National Criminal Defense College Trial Practice Institute. A member of the Massachusetts Association of Criminal Defense Lawyers, he is admitted to practice in Massachusetts and before the U.S. District Court for the District of Massachusetts.

Practice Areas
  • 100%Criminal Defense
Focus Areas

Arrest & Arraignment, Assault & Battery, Criminal Fraud, Criminal Law, Drug & Alcohol Violations, Expungement, False Accusations, Felony, Juvenile Delinquency, Misdemeanor, Motor Vehicle Offenses, Murder, Parole, Probation, Sex Offenses, Tax Evasion, Theft, Traffic Violations, Criminal Domestic Violence


2 Years Super Lawyers
2 Years Rising Stars
  • Super Lawyers: 2020 - 2021
  • Rising Stars: 2016 - 2017

About David J. Grimaldi

Admitted: 2007, Massachusetts

Professional Webpage: http://attorneygrimaldi.com/david-j-grimaldi-attorney/


  • Commonwealth v. S.P.  Case description: The Commonwealth charged Attorney Grimaldi's client with intentionally hitting another person with a car in an act of road rage.  At trial, Attorney Grimaldi proved that the Commonwealth's witnesses were unreliable.  Result: Not Guilty
  • Commonwealth v. M.R. Case Description: The Commonwealth alleged that Attorney Grimaldi's client stabbed one person, robbed two people, and physically assaulted three people during the course of an evening.  Attorney Grimaldi aggressively challenged the credibility of all the Commonwealth's witnesses at trial. Result: Not guilty.
  • Commonwealth v. C.O. Case Description: The Commonwealth alleged that Attorney Grimaldi's client raped a teenager and intimidated a witness.  Attorney Grimaldi aggressively challenged the prosecution's evidence at trial. Result: Not Guilty
  • Commonwealth v. R.D. Case Description: The Commonwealth alleged that Attorney Grimaldi's client assaulted an individual with a loaded, unlicensed firearm. At trial, Attorney Grimaldi demonstrated that the alleged victim falsely accused his client.  Result: Not Guilty
  • Commonwealth v. G.A. Case Description: The Commonwealth alleged that the client committed domestic assault and battery on his former girlfriend.  At trial, Attorney Grimaldi showed that the alleged victim had falsely accused his client out of jealousy.  Result: Not guilty

Bar/Professional Activity

  • National Criminal Defense College (NCDC) Trial Practice Institute
  • Massachusetts Association of Criminal Defense Lawyers
  • Criminal Justice Act panel of federal defense lawyers, Member
  • Massachusetts
  • Massachusetts Bar Association


  • Mock Trial Competition Finalist, Boston College Law School
  • National Mock Trial Team Member, Boston College Law School
  • Outstanding Promise of Professional Achievement, Boston College Law School
  • Selected as a “Rising Star” in criminal defense by Super Lawyers magazine

Scholarly Lectures/Writings

  • The Art of Cross-Examination, CPCS Training
  • Effective Opening Statements at Trial, CPCS Training
  • Challenging Police Searches of Cell Phones & Cellular Site Location Information (CSLI), Massachusetts Continuing Legal Education (MCLE)

Educational Background

  • National Criminal Defense College - Trial Practice Institute
  • Clark University, Bachelor of Arts, Magna Cum Laude
  • London School of Economics - Yearlong Study Abroad Program

Special Licenses/Certifications

  • Certification to accept Murder cases in Massachusetts
  • Criminal Justice Act Panel of Federal Defense Lawyers
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Office Location for David J. Grimaldi

929 Massachusetts Ave
Suite 200
Cambridge, MA 02139

Phone: 617-661-1529

Fax: 857-362-7889

Last Updated: 5/5/2021

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