Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records
Law firm

Morrison Mahoney LLP

21 attorneys in the New York State Bar registry list this organization as their firm or employer.

About Morrison Mahoney LLP

Morrison Mahoney LLP is a law firm headquartered in Boston, Massachusetts, which says it has been practicing since 1948. Its website describes a trial-focused practice that defends insurance companies and their insureds, as well as professionals, healthcare providers and businesses, and it also offers business advising and transactional work for corporate clients. Listed practice groups include commercial and business litigation, construction litigation, employment and labor, environmental and toxic tort matters, insurance coverage, medical malpractice defense, product liability, transportation, and workers' compensation, plus appellate work and cybersecurity, privacy and data protection.

The firm's New York City office, located at 88 Pine Street in Manhattan's Financial District, is listed on the firm's site as having served clients since 1994. Its attorneys there appear in New York state and federal courts on professional liability, products liability, construction, workers' compensation, insurance coverage and bad faith, toxic torts, transportation and business litigation matters. The firm reports more than 180 attorneys and offices in Massachusetts, Rhode Island, Connecticut, New Hampshire, New York, New Jersey and London.

TypeLaw firm
New York officesNew York, NY
Phone(212) 825-1212
Websitemorrisonmahoney.com
Registered NY attorneys21

Practice areas

Areas of work that Morrison Mahoney LLP describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.

Appeals Commercial Litigation Construction Employment & Labor Environmental Health Care Insurance Medical Malpractice Personal Injury Privacy & Cybersecurity Workers' Compensation

Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Morrison Mahoney LLP.

Registered attorneys

Felice Cotignola Admitted 1985 · New York, NY Currently registered Paul Tarr Admitted 1992 · New York, NY Currently registered John Dematteo Admitted 1993 · New York, NY Currently registered Brian Heermance Admitted 1994 · New York, NY Currently registered Allyson Belmont Admitted 1997 · New York, NY Currently registered Carmen Vasquez Admitted 1999 · New York, NY Currently registered David Allweiss Admitted 2000 · New York, NY Currently registered Demetra Sophocleous Admitted 1999 · New York, NY Currently registered Nicholas Gisonda Admitted 2001 · New York, NY Currently registered Christopher Keenoy Admitted 2009 · New York, NY Currently registered
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Registration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.

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