Keith Halpern

Top rated Criminal Defense attorney in Wellesley, Massachusetts

Attorney at Law
Keith Halpern
Attorney at Law

Practice Areas: Criminal Defense, Business Litigation, White Collar Crimes; view more

Licensed in Massachusetts since: 1985

Education: Harvard Law School

Selected to Super Lawyers: 2015 - 2023

Attorney at Law

572 Washington Street
Suite 19
Wellesley, MA 02482 Visit website


Mr. Halpern defends the rights of individuals in high stakes criminal cases, state and federal. His practice includes all criminal matters, ranging from major felonies, including violent crimes, drug trafficking and white collar crimes such as fraud, to misdemeanors.

Keith Halpern is the lawyer to call when your freedom or finances are on the line. Those charged with the most serious crimes, and those suffering from the most serious injuries, can rely upon attorney Halpern to fight to protect their interests. In criminal cases, whenever possible, he will pursue investigation to persuade prosecutors to drop charges. In personal injury cases, a favorable settlement is the first goal. When early resolution does not happen, attorney Halpern goes to trial, and he has a track record of winning. He has achieved acquittals in complex murder trials and multimillion-dollar recoveries in personal injury cases. 

Keith Halpern has a reputation for successfully litigating difficult and challenging cases. Mr. Halpern tries high-level felony cases in federal and state court, including homicide, white collar crimes, drug offenses, RICO, sex crimes and computer crimes. He represents individuals suffering substantial injuries in medical malpractice and complex personal injury cases. In addition, he works to resolve a wide variety of business litigation matters, including representation of medical doctors involved in professional disputes.

When facing federal charges, having an attorney with expertise in the federal sentencing guidelines is essential. Keith Halpern knows how to apply these complicated guidelines when negotiating for a better sentence. He is experienced in using the guidelines to achieve the best result possible at sentencing. 

Attorney Halpern has earned a unique reputation for the successful representation of the mentally ill in criminal cases. He has obtained a “not guilty” jury verdict in an insanity defense murder case – a rarity.   He has obtained several other acquittals in homicide cases through negotiations with prosecutors and jury-waived trials before judges. If you have a mentally ill family member facing criminal charges, attorney Halpern has the experience to help you.

Injuries in medical malpractice cases are often physically and financially devastating. A family’s future may turn on the outcome. Likewise, when facing criminal charges, your freedom depends upon smart and aggressive representation. The resources available to the other side – whether a prosecutor’s office or a lawyer retained by a malpractice insurer – will be substantial.  Attorney Halpern’s career has been a constant fight to level the playing field and win, through skill and hard work. He does not work alone.  Attorney Halpern works with renowned experts in criminal forensics, psychiatry and medicine to attack police investigations, scientific evidence or the claim that a medical injury was just bad luck.    

Attorney Halpern is AV Preeminent* peer-review rated, the highest rating, through Martindale-Hubbell. Much of his business comes through referrals from other attorneys or clients.  After receiving a Bachelor of Arts from Brown University, where he graduated magna cum laude, Mr. Halpern earned his Juris Doctor from Harvard Law School. He practices law throughout Massachusetts.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Rating™ fall into two categories – legal ability and general ethical standards.

Practice areas

Criminal Defense, Business Litigation, Criminal Defense: White Collar, Personal Injury - Medical Malpractice: Plaintiff

Focus areas

Criminal Law, Criminal Law - Federal, Drug & Alcohol Violations, Medical Malpractice, Motor Vehicle Offenses, Murder

First Admitted: 1982, New York

Professional Webpage:

  • Who's Who in American Law
  • AV Peer-Review Rating through Martindale-Hubbell
Scholarly Lectures/Writings:
  • Visiting Instructor, Harvard Law School
Bar/Professional Activity:
  • Massachusetts, 1985
  • New York, 1982
  • National Association of Criminal Defense Lawyers, 1985 - Present, Member
  • Association of Trial Lawyers of America, 1983 - Present, Member
Educational Background:
  • Brown University, Providence, Rhode Island, Bachelor of Arts, Honors: Magna Cum Laude, 1978
Representative Clients:
  • Drug Distribution Charges Dismissed for my Client and Eleven Others         My client was charged in federal court with selling heroin to a confidential ATF informant, supposedly caught on video. The same informant had been used by ATF to make cases against over a dozen people in state and federal cases. Expert analysis of the video raised doubt over whether any drug exchange took place. I developed substantial evidence that the informant had scammed the ATF agents he was working for, providing them with counterfeit drugs of his own and pocketing the drug buy money,  and was able to get away with his scam because ATF agents and prosecutors failed to adequately monitor what he was doing. This involved examination of phone records, to show that calls that the informant claimed to have had with my client never happened. It involved the examination of lab tests from all of the informant’s dozens of buys, and finding that the  lab results from drugs supposedly sold by my client were an exact match of drugs the informant claimed he was sold by another defendant days later, and that both contained such low amounts of heroin that it was essentially counterfeit. It involved the review of dozens of videos, ATF reports and lab results from the informant’s other buys, to find other occasions when videos showed no money or drugs, and recorded no conversation about a drug deal, and then seeing if those deals also involved counterfeit drugs. Ultimately, I developed compelling evidence that the informant had framed my client and others. Based on this work, the informant took the Fifth, and refused to testify at the trial of my client or anyone else. The Attorney General’s Office then dismissed eleven cases that involved the informant. The charges against my client were dismissed., 2019
  • Murder, Multiple Counts - Found Not Guilty – The Blackstone “House of Horrors” Case Responding to a call from a neighbor, police discovered two toddlers, a 5-month-old and a 3-year-old, that had been left in the care of my client’s 10-year-old son for several hours. The home was in unimaginable squalor. Upon returning home, unable to provide identification for the toddlers, my client told police that she had given birth to both children in secret in her home, that they had been raised in secret, and had never been outside of the home. Skeptical of the story, police obtained a search warrant, seeking materials that might shed light on the identity of the children. The skeletal remains of three babies, each near full-term, were discovered in closets. My defense strategy combined evidence of mental illness with a challenge to the allegations that the babies were murdered, contending that two of the babies were stillborn and the third died shortly after birth of natural causes. The trial focused heavily on expert psychiatric and forensic witnesses, with particular emphasis on challenging the Commonwealth’s witnesses on the issues of whether the infants were born alive, and whether my client did anything to cause their deaths. At trial, my client was found not guilty on all murder charges. , 2017

Office location for Keith Halpern

572 Washington Street
Suite 19
Wellesley, MA 02482

Phone: 617-431-6306


9 Years Super Lawyers
  • Super Lawyers: 2015 - 2023

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