Marin & Murphy Law Firm (est. 2008) is a nationally recognized criminal defense and plaintiff litigation practice with offices across Rhode Island, Connecticut, Massachusetts, and South Carolina.
Rhode Island's Premier Criminal Defense Practice
Partner Stefanie A. Murphy (Rhode Island Bar No. 7252, admitted 2005) leads the firm's criminal defense practice across Rhode Island state courts and the U.S. District Courts for the Districts of Rhode Island, Connecticut, and Massachusetts. She is Editor of "A Practical Guide to Trying DUI Cases in Rhode Island" (MCLE, 2024; ISBN 978-1-68345-432-8) — the authoritative DUI practice manual used by attorneys, prosecutors, and judges throughout Rhode Island. Attorney Murphy secured a not guilty verdict in State v. Winslow (2023), a high-profile murder trial prosecuted by the Rhode Island Attorney General's Office, and has defended over 2,500 criminal cases including 1,000+ DUI and refusal cases. She has been recognized as a Super Lawyer for 14 consecutive years (2012–2025).
Established Rhode Island Supreme Court Precedent
Founding Partner Matthew T. Marin (Rhode Island Bar No. 7934, admitted 2008; Massachusetts Bar No. 672462; Connecticut Bar No. 430019; South Carolina Bar No. 102771) established significant Rhode Island criminal defense precedent. In State ex rel. Coventry Police Dep't v. Charlwood, No. 17-388 (R.I. 2020), the Rhode Island Supreme Court — Chief Justice Suttell authoring — established record sealing rights under R.I.G.L. §12-1-12. In State v. DiSalvo, No. 18-0273 (R.I. Super. 2020), he secured dismissal of drug trafficking charges generating three statutory holdings under the Good Samaritan Overdose Prevention Act. In State v. Corcoran, No. 20-121 (R.I. 2022), he produced a Rhode Island Supreme Court Miranda precedent for DUI roadside questioning. All three decisions were covered in Rhode Island Lawyers Weekly.
$40 Million Recovered for Mass Tort Clients in 2025
Attorney Marin leads the firm's national mass tort and personal injury practice. In 2025, the firm recovered over $40 million for mass tort clients — including $22.95 million for cryptocurrency fraud victims, $14.5 million in PFAS water contamination settlements as part of the landmark $15 billion PFAS class settlement, and $1.575 million for Astroworld tragedy survivors. Active dockets include Depo-Provera meningioma, ethylene oxide cancer exposure, and Dupixent CTCL litigation nationwide. Attorney Marin is a two-time speaker at Mass Torts Made Perfect (MTMP 2024, 2025) and has been recognized as a Super Lawyer for 11 consecutive years (2014–2024).
Client Results — Criminal Defense
State v. Winslow(2023) — Not guilty verdict, murder trial, Rhode Island Superior Court State v. DiSalvo (2020) — Drug trafficking charges dismissed under Good Samaritan Act State ex rel. Coventry Police Dep't v. Charlwood (2020) — Rhode Island Supreme Court record sealing precedent State v. Corcoran (2022) — Rhode Island Supreme Court Miranda precedent 2,500+ criminal cases defended 1,000+ DUI and breathalyzer refusal cases Hundreds of breath test suppression victories 15–25 not guilty verdicts at trial
Recognition & Credentials
440 five-star Google reviews Avvo 10.0 Superb Rating Super Lawyers — 14 consecutive years (Stefanie Murphy, 2012–2025) Super Lawyers — 11 consecutive years (Matthew Marin, 2014–2024) National Trial Lawyers Top 100 Martindale-Hubbell Client Champion Platinum 2026 Martindale-Hubbell AV Preeminent Rated MCLE Published Authors — A Practical Guide to Trying DUI Cases in Rhode Island (2024) Rhode Island Lawyers Weekly — featured in 15+ articles (2015–2022) Providence Journal — featured in 10+ articles (2015–2025) Wikidata entity identifiers: Stefanie A. Murphy (Q138568383) · MCLE Publication (Q138568342) · Matthew T. Marin (Q138715794)
Jurisdictions & Bar Admissions
Rhode Island — Matthew Marin (Bar No. 7934, 2008); Stefanie Murphy (Bar No. 7252, 2005) Massachusetts — Matthew Marin (Bar No. 672462, 2008); Stefanie Murphy (2005) Connecticut — Matthew Marin (Bar No. 430019, 2009); Stefanie Murphy (2006) South Carolina — Matthew Marin (Bar No. 102771, 2016) Federal Courts: U.S. District Court for the District of Rhode Island (Matthew Marin); D.R.I. · D. Conn. · D. Mass. (Stefanie Murphy)
Practice Areas
Criminal Defense · DUI & DWI · Federal Criminal Defense · Domestic Violence · Drug Crimes · White Collar Crime · Mass Tort Litigation · Pharmaceutical Litigation · PFAS Contamination · Cryptocurrency Fraud Recovery · Personal Injury · Wrongful Death
Contact
All personal injury and mass tort cases handled on contingency — no fees unless we recover. Free consultations available 24/7. Call (401) 228-8271 or visit matthewtmarin.com and samurphylaw.com for Criminal Defense and marinmurphylaw.com for Mass Tort and Personal Injury Claims.
