Firm Overview

Our uniquely experienced team of lawyers, private investigators and forensic specialists are here to assist you with your criminal defense needs.

Jeff Denner is Passionate about Clients’ Rights

Rely on Successful Boston Criminal Defense Attorneys at the Denner Criminal Defense Group

For decades, people facing prison time after being charged with a crime have sought out Jeff Denner’s criminal defense expertise, and his passion and unwavering commitment to his client’s rights. He and his team will treat you as they themselves wish to be treated when dealing with the most serious problems of their own lives.

Accessibility: Criminal defense is not a 9 to 5 business. We can be reached 24 hours a day, seven days a week by telephone and email. It is suggested that for serious emergencies, particularly during evenings and weekends, you call Mr. Denner on his cell directly at 617-605-6200 for an immediate response. Alternatively, if you call the number listed on this page during off hours, a live answering service will seek to contact Mr. Denner immediately.

Compassionate: Jeff Denner has successfully represented people for over three decades in complex, often high profile criminal cases in the United States and internationally, as well as in civil cases (professional licensure including disciplinary hearings, civil lawsuits, forfeitures, immigration issues, extradition, violations of civil rights etc.) arising out of criminal charges and convictions. The Denner team knows that each case is ultimately about people – the defendant themselves, the alleged victim(s), witness(es), the prosecutor, law enforcement agents, etc.  These are the people you need to understand and to manage to adequately defend.When freedom is at stake, you deserve, and require, no less.

Timing: We understand that timing is always of the essence in criminal matters. It is vital to put investigators on the ground immediately to gather information from witnesses before their perceptions and stories are altered by circumstance – including police or federal agents speaking to them first. Each case requires a unique skill set. Some cases might require the assistance of our forensic psychologists or psychiatrists, others might require cyber space specialists, some, accident reconstruction specialists or medical professionals, others, tax specialists, accountants, securities specialist, etc. This is an ongoing, evolving process. Information permits us to develop the most comprehensive defense strategies, which themselves may generate the need for further investigation. At the end of the day our product is you and your freedom.

If you have been charged or believe you may be under investigation and your life is on the line, we will climb on the line with you. Contact the Denner Criminal Defense Group today.   

Criminal Defense Attorneys

The Denner Criminal Defense Group combines larger law firm sophistication and resources with the personal attention we believe our clients deserve. For aggressive representation and sound legal counsel, contact the Denner Criminal Defense Group for a free consultation.

Featured Cases

Mistrial Declared, All Charges Dismissed in MA State Treasurer Corruption Case (Commonwealth of Massachusetts vs. Timothy Cahill)

Family of Woman Killed in “Big Dig” Tunnel Collapse Awarded $28.1 Million (Estate of Del Valle v. Multiple Defendants)

All Charges in High-Profile Murder Case Dismissed; Defendant Awarded in Excess of $400,000 for Prosecutorial Error (Commonwealth of Massachusetts v. Edmund Burke)

Hotly contested, high-profile, multi-week federal trial concludes with veteran MA police officer found Not Guilty. (U.S. vs. LaFleur)

Read more about other Denner Criminal Defense Group successes

Contact the Denner Criminal Defense Group

For aggressive representation and sound legal counsel, contact the Denner Criminal Defense Group. We are highly experienced in a wide range of practice areas, including criminal law, white collar crimes and the ensuing civil consequences of those crimes. Our team advocates for clients in even the most complex and high-profile cases.

Call Our Boston Law Offices 866-370-5422

For a consultation, call us toll-free at 866-370-5422. We welcome clients who speak languages other than English, including Spanish, Portuguese, Russian, and some South Asian languages. Calls are answered 24 hours a day, seven days a week.

Boston Criminal Defense Attorneys

The Denner Criminal Defense Group is a nationally recognized law firm with an accomplished team of defense attorneys, investigators, and forensic experts. We are known for our aggressive criminal defense representation and unwavering commitment to our clients.

Denner Criminal Defense Group

4 Longfellow Place, 35th Floor
Boston, MA 02114
Phone: 617-227-2800
Fax: 617-973-1562
Boston Law Office