Free Consultation
$0 first 30 minutes
A career prosecutor now fighting for you.
Representing clients before courts in Massachusetts and New Hampshire.
Jason B. Grosky, Esq. spent almost two decades as a courtroom prosecutor both in Massachusetts and New Hampshire. Each day, he's worked alongside police officers, assisting them on their cases, helping direct their investigations. He understands how a case is built from day one, the work of a detective, how officers think, their methods. He’s argued thousands of cases in front of judges and juries and earned a reputation as a hard-charging courtroom litigator. He's a fighter.
Now, he wants to fight for you.
If you’ve had an interaction with law enforcement and need legal counsel, give Attorney Grosky a call. The Grosky Law Firm focuses on criminal defense, impaired driving (DUI/OUI/DWI), motor vehicle infractions and administrative hearings, personal injury, juvenile law, divorce, family law and domestic relations including restraining orders stalking orders of protection and New Hampshire municipal law.
Proven experience.
Proven results.
Now on your side.
Fighting for you.
Free Consultation
$0 first 30 minutes
Quickly connect with top attorneys through our legal directory to get help with your legal issue.
Chat with a live agent who can match you with the right attorney for your legal needs.
Chat withState: New Hampshire
Acquired: 2009
No misconduct found
State: Massachusetts
Acquired: 2006
No misconduct found
105 Kenoza Ave, Haverhill, MA, 01830
27 Client Reviews
Showing 1 - 4 of 4 reviews | Character & Conduct
Posted by anonymous | October 20, 2025 | Hired Attorney | Criminal Defense
Exceptional Attorney
Jason Grosky is an exceptionally experienced, dedicated, and driven attorney. I came to Jason on a recommendation from a coworker who spoke just as highly of him as I now do. My case involved a driving incident with a Class A Misdemeanor charge, carrying the possibility of a large fine, potential ...
Posted by Jamie | May 30, 2025 | Hired Attorney | Elder Law
Best Experience
Jason took great care of my elderly dad. His communication was clear and understandable and he went above and beyond to see his case through, closing it out successfully and faster than we anticipated. As with any issue involving an attorney, the experience can be stressful and scary, but Jason const...
Posted by anonymous | May 19, 2025 | Hired Attorney | Lawsuits & Disputes
Simply the best!
Jason’s professionalism, expertise, and genuine care for his clients are truly unmatched. He assisted me with a personal matter and resolved the issue promptly and effectively. Throughout a challenging time marked by personal trauma, Jason made my safety his priority. He was always available to answe...
Posted by Bill | March 23, 2025 | Hired Attorney | Criminal Defense
Don’t go it in your own. Hire a professional.
I recently retained Atorney Grosky to represent me as the defendant a stalking and no contact order. Since I knew that the complaint was baseless, I had thought about representing myself in the case. I am very glad that I didn’t! Jason was well versed in the matter and not only helped me manage th...
No Endorsement Data Available Yet
This attorney hasn't received any attorney endorsements recently on Avvo.
No Endorsement Data Available Yet
This attorney hasn't created any attorney endorsements recently on Avvo.
2025 - Present
Principal, Grosky Law Firm
2009 - 2025
Prosecuting Attorney, Salem (NH) Police Department
2007 - 2009
Assistant District Attorney, Essex County District Attorneys Office
2006
JD - Juris Doctorate