About Lothstein Guerriero, PLLC

Lothstein Guerriero, PLLC is a New Hampshire defense firm representing individuals, professionals, businesses, and organizations in serious legal matters. Formed in 2013 by Theodore Lothstein and Richard Guerriero, the firm concentrates on protecting clients facing criminal allegations, government investigations, professional discipline, and other proceedings that may threaten their liberty, licenses, livelihoods, or reputations. Its attorneys bring decades of combined courtroom and appellate experience to cases throughout the state.

Lothstein Guerriero, PLLC handles state and federal criminal defense, including allegations involving assault, drug offenses, theft, sexual misconduct, juvenile matters, and other felony or misdemeanor charges. The firm also represents clients in DWI and DUI cases, motor vehicle matters, habitual offender proceedings, restraining and stalking order cases, and investigations involving individuals or organizations. Its attorneys may also advise witnesses, alleged victims, and subpoena recipients in criminal or official investigations.

Lothstein Guerriero, PLLC maintains a substantial civil and criminal appellate practice. Its lawyers have litigated more than 100 appeals and have appeared before the New Hampshire Supreme Court, the US Court of Appeals for the First Circuit, and the US Supreme Court. The firm also assists licensed professionals facing disciplinary complaints and proceedings before New Hampshire regulatory boards, combining legal analysis with careful attention to the career consequences of each matter.

Lothstein Guerriero, PLLC serves clients from offices in Concord and Keene. The firm emphasizes detailed preparation, candid advice, responsive communication, and advocacy shaped by the specific facts of each case. Its attorneys have handled hundreds of bench trials, more than 100 jury trials, and numerous significant appellate matters. Through negotiation, motion practice, trial work, and appeals, the firm seeks to protect clients’ rights and pursue practical outcomes in difficult and high-stakes disputes.

Practice Areas

Criminal Defense
  • DWI/DUI
  • Burglary
  • Annulment
  • Assault
  • Drug Possession
  • Sexual Assault
  • Theft Offenses
  • Domestic Violence
  • Felony
  • Misdemeanors
  • Federal Crime
  • White Collar Crime
  • Homicides
  • Juvenile
  • Investigations

Fees

  • Payment Details Not Specified
  • Free Consultation

Office locations for Lothstein Guerriero, PLLC

Lothstein Guerriero, PLLC - Concord

5 Green St, Concord, NH 03301

Lothstein Guerriero, PLLC - Keene

Chamberlain Block Building, 39 Central Square Ste 202, Keene, NH 03431