Boston & Cambridge Criminal Defense Lawyer

Attorney David J. Grimaldi provides outstanding legal representation to clients charged with state and federal crimes in Greater Boston and across Massachusetts. Specializing in criminal defense, Attorney Grimaldi’s history of success in the courtroom is built on years of experience and a genuine commitment to his clients. Attorney Grimaldi’s record of excellent results, including many “not guilty” verdicts at trial, has earned him special recognition from clients and legal professionals alike. Selecting the best defense attorney is among the most important decisions a person makes when facing criminal charges. As with many choices in life, the best option is usually the one that produces the best results. If you are charged with a crime, you need complete confidence in your lawyer. Boston Criminal Defense Attorney David J. Grimaldi’s commitment to your success will give you the confidence you need.

Attorney Grimaldi represents clients accused of crimes in a wide array of criminal defense matters, including the following.

Drug Crimes

Drug crimes are among the most frequently charged offenses in state and federal court. On a daily basis, law enforcement investigates or charges people with crimes concerning cocaine, heroin, fentanyl, marijuana, unauthorized prescription drugs, and other substances. Whether you are accused of possession, possession with the intent to distribute, distribution, or trafficking, you need strong and experienced criminal defense representation.

Boston Drug Crime Attorney David J. Grimaldi has extensive experience in defending clients accused of drug offenses. Attorney Grimaldi has successfully moved to suppress or “throw out” evidence of drugs on numerous occasions for his clients. By winning suppression of the evidence, the prosecution was forced to dismiss the cases entirely. Attorney Grimaldi has also won motions to dismiss drug charges directly, including by proving that the prosecution presented false testimony to a grand jury to obtain the charges, and by proving that the police lacked probable cause to charge his client in the first place. If you are charged with a drug crime, you need a successful criminal defense lawyer capable of beating the prosecution. Attorney David J. Grimaldi is available to represent you.

Sexual Offenses

Sexual offenses are among the most serious criminal charges a person can face. Yet despite the severe potential consequences and social stigma associated with these charges, sex offense allegations can be defeated with an experienced and successful criminal defense attorney. Boston Sex Offense Attorney David J. Grimaldi has successfully defended numerous clients accused of nearly every kind of sexual crime. He has won “not guilty” verdicts at trial on charges of Rape, Rape of Child, Assault with Intent to Rape, Assault with Intent to Rape a Child, Indecent Assault and Battery on a Child, Furnishing Obscene Matter to a Minor, and related charges. Attorney Grimaldi has also won dismissal of numerous sex offense charges before trial, including Rape and Child Pornography charges. He has even convinced prosecutors investigating sex offense allegations not to bring charges against his clients at all.

If you are charged with a sexual offense, you need the best criminal defense representation possible. Attorney David J. Grimaldi has the extensive experience and proven record of success you need to fight the sex offense charges against you.

Violent Offenses

It may come as no surprise that prosecutors and judges typically view allegations of violence very seriously. Whether the case alleges a fistfight, shooting, stabbing, or other violent crime, a person charged with a violent offense should obtain the best criminal defense lawyer possible. Boston Violent Crimes Attorney David J. Grimaldi has won numerous cases charging violent offenses, including “not guilty” verdicts at trial for Murder, Attempted Murder, Armed Assault with Intent to Murder, Home Invasion, Mayhem, Armed Robbery, Unarmed Robbery, Assault and Battery, Assault with a Dangerous Weapon, Assault and Battery with a Dangerous Weapon, Assault and Battery on a Police Officer, and related charges.

Attorney Grimaldi knows how to find the key to successful defenses in violent crime cases. Sometimes the alleged victim has fabricated or exaggerated the accusation. Other times the incident occurred in self-defense. In some cases, the alleged victim has simply misidentified an innocent person as the assailant. Attorney Grimaldi has successfully defended clients accused of violent crimes in all of these scenarios and more. If you are charged with a violent crime, an experienced criminal defense attorney with a proven track record of victory is here to help you.

Domestic Violence and Restraining Orders

Charges of domestic violence are vigorously prosecuted in Massachusetts. Often accompanied by a request for a restraining order, judges tend to pay close attention to allegations of domestic violence. Yet despite the seriousness given to domestic violence charges, an accomplished criminal defense lawyer can often present a successful defense against these charges.

Boston Domestic Violence Attorney David J. Grimaldi has successfully handled many domestic violence cases. He has won “not guilty” verdicts at trial in cases alleging Domestic Assault and Battery, Assault and Battery with a Dangerous Weapon, Witness Intimidation, and related domestic violence charges. Attorney Grimaldi has successfully challenged the credibility of alleged victims by exposing contradictions and weaknesses in their stories. Attorney Grimaldi has also saved his clients from charges of restraining order charges by proving that the charges were unjustified. If you are accused of a crime of domestic violence, you need an experienced criminal defense attorney like Attorney Grimaldi with a history of winning these types of cases.

Murder and Homicide

There is no charge quite as serious as a murder charge. If you or someone you love is charged with murder or other homicide, you absolutely need a lawyer who can win. Boston Murder Attorney David J. Grimaldi is ideally suited to represent clients charged with murder, manslaughter, and motor vehicle homicide. The proof is in the results. Attorney Grimaldi has won “not guilty” verdicts at trial in cases alleging murder and motor vehicle homicide. He has won his client’s release on bail pending trial on murder charges. He has successfully challenged police practices in murder cases to win exclusion of key prosecution evidence against his clients. In a landmark victory, Attorney Grimaldi was the first criminal defense attorney in the history of Massachusetts to persuade a judge to grant immunity to defense witnesses, a victory that helped achieve his client’s acquittal of homicide charges.

Attorney Grimaldi knows the satisfaction of standing next to his client as “not guilty” verdicts for murder and homicide are delivered in the courtroom. Just as importantly, he knows the kind of hard work and dedication it takes to get there. If you or a loved one are charged with murder or homicide, real help is available. Attorney David J. Grimaldi has the proven experience to provide the excellent legal representation you deserve.

Firearm Offenses

Massachusetts has some of the strictest gun laws in the country. A conviction for unlawful possession of a firearm outside the home typically carries an eighteen-month mandatory minimum jail sentence. Depending on the kind of firearm, the nature of the incident, or the client’s prior criminal record, the potential sentences can be increased even further. If you are charged with a gun offense, you need the best possible criminal defense representation.

Boston Firearms Attorney David J. Grimaldi has successfully defended many clients accused of gun offenses. He has won “not guilty” verdicts at trial on firearms, ammunition, and gun assault charges. He has even won acquittals for clients charged with second offense firearm violations. Before trial, Attorney Grimaldi has successfully moved to suppress or “throw out” evidence of guns, including large-capacity weapons, in numerous cases by proving that the search and seizure of the evidence by the police was unconstitutional. By winning suppression, the prosecution was forced to dismiss the charges. Attorney Grimaldi is ready to bring his successful experience defending firearm cases to your case today.

Operating Under the Influence

If you are charged with Operating Under the Influence (OUI or DUI), you need an experienced attorney to defend you and help you navigate the process. First and foremost, if you can beat your case, your lawyer must be ready to fight your case at trial. Since in most cases the police took your driver’s license, however, you also need your license back as soon as possible. If you decide to resolve your case with the prosecution before a trial, your lawyer must be ready to achieve the absolute best possible result for you, including the earliest restoration of your license. Other considerations, including the requirements of the Alcohol Education Program, must be fully explained to the client before deciding whether to resolve the case.

Boston OUI Attorney David J. Grimaldi has significant experience defending clients accused of driving while intoxicated. In one case, the prosecution alleged that his client killed another driver while intoxicated in a motor vehicle crash. At trial, the jury agreed that Attorney Grimaldi’s client was “not guilty” of motor vehicle homicide after Attorney Grimaldi showed that intoxication was not the cause the accident. In addition to his successful trial work, Attorney Grimaldi has also negotiated many positive resolutions for clients in OUI cases and helped obtain temporary hardship driver’s licenses for his clients. No matter the circumstances, Attorney Grimaldi is ready to help you achieve the best result in your OUI case.

White-Collar Crime

Allegations of white-collar and financial crime require a sophisticated and vigorous defense. Government agents often use grand jury subpoenas, search warrants, and other sophisticated methods in an attempt to build accusations against individuals and companies. The stakes can be enormous. Your criminal defense lawyer must have the right knowledge and expertise to deconstruct the government’s case effectively and prove the client’s innocence.

Boston White-Collar Crime Attorney David J. Grimaldi represents individuals and corporations accused of white-collar and financial crime in both federal and state court. He has represented clients accused of tax fraud, bank fraud, wire fraud, naturalization fraud, money laundering, identity theft, conspiracy to defraud the government, conversion of government property, false statements on a loan application, and related charges. He has significant trial experience in state and federal court, including a “not guilty” verdict in a federal case where prosecutors charged that his client lied to government officials. If you are charged with a white-collar or financial crime, you need expert representation. Attorney Grimaldi is prepared to provide the vigorous defense that you deserve.

College and University Discipline & Title IX

So many students at the excellent colleges and universities in Massachusetts have worked hard and have very bright futures. Significant challenges can arise, however, when the school officially accuses the student of academic or personal misconduct. Plagiarism, cheating, stalking, physical assault, and sexual assault are only some of the most common accusations by colleges against their students. With so much on the line, students accused of misconduct require the best possible legal representation.

Boston College and University Discipline Attorney David J. Grimaldi has represented students accused of misconduct at many of the major colleges and universities in Greater Boston. He also represents students in so-called Title IX matters in cases alleging campus sexual assault. As counsel for students, Attorney Grimaldi has successfully investigated numerous cases for his client’s benefit. He has also prepared students for hearings before the University Board and assisted them with written appeals. If you or a loved one are accused of misconduct on campus, you need a successful attorney like Attorney Grimaldi to represent you.

Every person accused of a crime should have excellent legal representation, including you. The stakes are too significant to proceed with anyone but the best advocate by your side. Only some lawyers have the proven ability to successfully defend criminal cases. Attorney David J. Grimaldi knows how to achieve the best possible results for his clients. If you have been accused or charged with a crime, contact Attorney Grimaldi at (617) 661-1529 or online today.

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Meet the Attorney

Attorney David J. Grimaldi provides outstanding legal representation to clients throughout Greater Boston and across Massachusetts. His knowledge of the law, courtroom experience, meticulous preparation, and passion for justice inspire confidence and trust in his clients. If you or a loved one are charged with a crime, call Attorney Grimaldi today for a consultation.

Client Reviews

Attorney David Grimaldi is a truly exceptional criminal defense lawyer. He represented me in a case in Suffolk Superior Court, and I know that I received the absolute best possible representation. Mr. Grimaldi met with me often, always kept me informed, answered my questions, and fought hard for...


I highly recommend David Grimaldi. He was always responsive and sympathetic to my situation, from the very first call at the height of my crisis until the case was eventually dismissed. In court he was articulate and clever without ever appearing to upset the other attorney or judge presiding. I...


At some point in our lives we all run into a situation we can not control and need help. I was lost and after 2 lawyers and no help in sight I got lucky and someone referred David Grimaldi to me for my federal case . After 19 days without even a chance for Bail/Bond, David stood up and fought for me...

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