Get the right strategy to win your criminal case!



At The Law Office of Matthew W. Peterson, we are unwavering in our commitment to protecting your rights and securing your future. Our aggressive, results-driven defense leaves no detail overlooked, crafting a legal strategy tailored to your unique circumstances. With in-depth experience in Rockingham County’s criminal justice system, we confront obstacles head-on and never allow your charges to define who you are. Where others pause, we push forward—relentlessly and decisively. Whether you’re from Brentwood, Candia, Derry, Hampton, Portsmouth, or Salem, our attorneys are ready to stand by your side and fight for your freedom. Your battle is our mission, and we won’t back down.
Our experienced legal team defends professionals facing fraud, embezzlement, burglary, and more. Discreet, strategic, and relentless advocacy when it matters most. Schedule your confidential consultation today.
Protect your rights and future with experienced legal defense against theft and property crime charges. We fight to challenge evidence and secure the best possible outcome for your case. Call us now!
Protect your future with experienced Drug Crime Defense you can trust. Our dedicated legal team fights to protect your rights and guide you through every step of the process.
We’ve secured countless dismissals, acquittals, and reduced charges — and we’re just getting started.
We’re trial-ready and unafraid. Prosecutors know we mean business when we walk into the courtroom.
Every case is personal. We fight like your life depends on it — because it often does. We never forget what’s at stake.
You’re not just a case number. We listen, strategize, and stand by your side from start to finish.

EXCELLENT Based on 168 reviews Posted on Ricardo SilvaTrustindex verifies that the original source of the review is Google. They helped me with my Marriage based green card process. Everything was simple and every time I had any questions or concerns, I could quickly schedule a call with Mr. Peterson! Thank you for your help and I totally recommend it. We had to submit the paperwork 3 times, but upon final submission, it took 4 months to get my case approved!Posted on Tyler HunterTrustindex verifies that the original source of the review is Google. Amazing experience having the law office of Matthew W Peterson take my case. Chris did such an outstanding job, with such professionalism I can’t thank him enough! And the entire staff made everything such a breeze to work with them. Especially for someone out of state!Posted on Douglas ATrustindex verifies that the original source of the review is Google. Im so thankful with attorney Matthew Peterson I Was going through problems that could’ve got me jail time but thanks to his Intelligence and strategics he got my case dismissed. I would 100% recommend him if you ever need an attorney to represent in court and help you with criminal chargesPosted on Alisha UnderwoodTrustindex verifies that the original source of the review is Google. If you find yourself needing legal help in the Boston area, give this firm & Attorney Manchinton a call. The entire firm was very supportive and responsive throughout my entire case. I could tell Attorney Manchinton genuinely cared and felt a sense of indignation about what I was going through. We were able to get the best possible outcome - a dismissal at the clerk magistrate level which was such a relief. Don’t hesitate, don’t call someone else, hire the Law Office of Matthew W. Peterson.Posted on MikeTrustindex verifies that the original source of the review is Google. Matt and team were very professional and helped me understand everything. Highly recommend!Posted on Michele “Michelec”Trustindex verifies that the original source of the review is Google. Amazing lawyer!!! Prepared, available, and effectivePosted on fred jonesTrustindex verifies that the original source of the review is Google. Matthew Peterson was unbelievably helpful during my process of clearing up a cpl diffrent issues with my LTC. I would recommend him 10/10 times to anyone who is in need of his help.Posted on Kenyon GramajoTrustindex verifies that the original source of the review is Google. We are truly grateful for the help, support, and guidance we received from Mr. Peterson and his team. From beginning to end, they handled our case with professionalism, care, and expertise. Mr. Peterson made sure we understood each step of the process and always took the time to answer our questions. His guidance gave us confidence and peace of mind, and everything was handled smoothly and efficiently. We highly recommend Mr. Peterson and his team to anyone in need of a knowledgeable and dependable attorney.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Our Legal Process
At the Law Office of Matthew W. Peterson, we attack every case with precision and relentless determination. Our approach is clear: understand the full scope, craft a powerful strategy, and fight aggressively for your rights. No shortcuts, no excuses—just results.
We carefully review your case to understand the key details that are essential to building a strong defense.
After our initial assessment, we craft a tailored strategy designed to actively drive the results we’re looking for.
Once we’re retained, we begin your defense with steadfast dedication, standing by you every step of the way.
Contact Our New Hampshire Criminal Defense Attorney Now!