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John Sheehan
Buffalo, New York

(716) 854-2020 Phone
(716) 854-6291 Fax
(800) 621-2020 Toll Free

I am proud to be a part of the excellent team of trial attorneys at Cellino & Barnes.  I have represented injured persons since my admission to practice law in 1988 and have derived great satisfaction helping people in their time of need.  I relish the opportunity to zealously represent my clients whose lives have been adversely affected by the carelessness of others.

I have prosecuted cases against some of the country's biggest companies and insurance carriers.  I appreciate my role as my clients' champion when they face a "David versus Goliath" confrontation in their personal injury claim. 

I have found that success is dependent on 1) a focused, positive attitude, 2) disciplined preparation and 3) the relentless pursuit of the desired goal.  I approach the practice of law with these principles in mind.


  • Bachelor of Arts: 1982  Canisius College
  • Juris Doctorate: 1987  McGeorge School of Law, Univ. of the Pacific
  • Licensed to practice law in New York and California


  • Trial Attorney - Cellino & Barnes (2003 - Present)
  • Trial Attorney - Hellerer, Cuomo & O’Connor (1999 – 2002)
  • General Counsel - The Erie Group of Companies (1998)
  • Trial Attorney - Law Offices of John A. Sheehan (1991 – 1997)
  • Trial Attorney - Hoseit & Koelewyn (1990 – 1991)
  • Trial Attorney - VanTassell & Fornasero (1988 – 1989)

Honors and Professional Organizations

  • Erie County Bar Association
  • The State Bar of California  

Community/Military Service

  • Youth Hockey Coach (1988-1997)


  • I live in West Seneca with my wife and daughter. 
  • I enjoy running and cycling and the outdoor activities of hunting, fishing, hiking and camping.

Attorney Sheehan represents victims who have been injured as a result of motorcycle accidents, truck accidents, construction accidents, slip and falls, and more.

Cellino & Barnes represents or has represented auto injury victims throughout the Rochester, New York area, including: Brighton, Brockport, Chili Center, East Penfield, East Rochester, Fairport, Gates Center, Greece, Hamlin, Henrietta, Honeoye Falls, Irondequoit, North Chili, North Greece, North Hamlin, North Rush, Penfield, Pittsford, Rochester, Rush, South Chili, South Greece, Spencerport, Webster, West Brighton, West Chili, West Greece, West Henrietta, and West Webster.


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