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For over 30 years I have focused my practice on criminal defense and the ethical responsibilities of criminal defense attorneys. We represent citizens throughout New Hampshire in state and federal court. Our firm has an office in Keene, NH, where I am based, and we have an office in Concord, NH, where my partner, Ted Lothstein, is based. The Keene Office is just one block from both 8th Circuit Court - Keene Division and Cheshire County Superior Court. Our Concord office is across the street from New Hampshire's federal court, the United States District Court for the District of New Hampshire. We also have ready access to the New Hampshire Supreme Court and the NH Dept. of Public Safety, Division of Motor Vehicles, from our Concord office.
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Practice Areas
42 years
42 years
We have not found any cost information for this lawyer
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Chat withState: New Hampshire
Acquired: 1994
No misconduct found
39 Central Square, Suite 202, Keene, NH, 03431
Five Green Street, Concord, NH, 03301
Showing 1 - 5 of 24 client reviews from Avvo
Posted by anonymous | November 19, 2025 | Hired Attorney
Richard handled my case with professional grace. Throughout the process, both he and Kristen were helpful in explaining everything.
Posted by anonymous | November 17, 2025 | Hired Attorney
My life turned upside down when I was informed of a dated outstanding warrant. I was out of state and needed a great attorney to help me through this nightmare. Richard Guerriero’s name came up several times. I contacted Richard’s firm late on a Friday afternoon. He reached back out to me later t...
Posted by Scott H. | December 5, 2024 | Hired Attorney
In September 2024, I received notice of a professional ethics complaint against my medical license before the New Hampshire Office of Professional Licensure and Certification (OPLC). I retained Attorney Doty and her team to represent me in what was essentially a civil ethics matter. By November 2024,...
Posted by anonymous | February 2, 2024 | Hired Attorney
Richard represented me on a DUI charge. He was very supportive, understanding and great at his job! We had a positive outcome and I am extremely grateful for his support and dedication to my case.
Posted by anonymous | December 5, 2023 | Hired Attorney
I chose to have Richard represent me and I couldn’t have asked for a better outcome. You can tell he knows what he’s doing and cares about his clients.
"When it comes to intelligence, persistence, zealousness, ethics, and commitment to the client, I am not sure I have ever met a lawyer who has these all of these traits in such impressive combination. Richard is the state's go-to person for complex criminal defense . . . he is painstakingly thorough, adept at developing factual and legal defenses, and extremely good at sentencing advocacy. If I or a loved one were in trouble, Richard might well be my first call."
"Richard is one of the most knowledgeable and hard-working criminal defense attorneys in the state."
"You will not find a smarter, more well respected lawyer than Richard Guerriero. I was a new public defender in 2008, when Richard was preparing a very high profile capital murder case for trial. What I saw in Richard was the very best role model for a new lawyer and I was lucky to have his example. Richard is brilliant, meticulous, and dedicated to his clients. Further, he has the unmatched respect of the legal community, including judges and prosecutors. If you walk into court with Richard, you can be sure that you are with the highest quality lawyer. If my closest family member needed representation, I would send them to Richard before anyone else."
"I worked with Richard at the New Hampshire Public Defender beginning when I interned with the program in 2006. Since that time, I've seen first hand what a great lawyer Richard is. He's smart, thorough and treats his clients with care and respect. I highly recommend him."
"I have known Richard for most of the 20+ years that he has practiced in NH and I have seen his work in and out of the courtroom. He is hardworking, dedicated and almost always the smartest lawyer in the room."
Criminal defense lawyer
Criminal defense lawyer
Immigration lawyer
Criminal defense lawyer
Criminal defense lawyer
2009
Frank Rowe Kenison Award, New Hampshire Bar Association
2007
Fellow, American College of Trial Lawyers
2005
Champion of Justice Award, New Hampshire Association of Criminal Defense Lawyers
1992
Champion of Justice, Louisiana Association of Criminal Defense Lawyers
1981
Member, Phi Beta Kappa Honor Society
2013 - Present
Attorney, Manager, Lothstein Guerriero, PLLC
1994 - 2013
Attorney, Training Director, Litigation Director, New Hampshire Public Defender
1985 - 1993
Attorney, Private Attorney in Baton Rouge, La.
1984 - 1985
Law Clerk, Supreme Court Of Louisiana
1995 - Present
New Hampshire Association of Criminal Defense LawyersBoard of Directors
Fellow
Board of Governors
Board of Directors
Past Co-chair
Member
1984
JD - Juris Doctor
1981
BA - Bachelor of Arts
2013
5-Week Training Program for New Public Defenders
English