J. Sean Connelly
J. Sean Connelly
Fax 201-444-7717


J. Sean Connelly, a resident of Bergen County, NJ, is a Partner at Seigel Law and concentrates his practice in the area of civil trial litigation. He has been Certified by the Supreme Court of the State of New Jersey as a Certified Civil Trial attorney.

Sean born in the Bronx and was raised in Franklin Lakes, New Jersey. He graduated from Marquette University, Milwaukee Wisconsin with a major in Business Administration. He then attended St. John’s University School of Law in Jamaica, New York where he earned a Juris Doctorate. During law school, Sean interned in the domestic violence clinic at the Suffolk County, NY Supreme Court representing victims of domestic violence in Court proceedings. Sean also interned for the elite Homicide Investigations Unit of the Manhattan District Attorney’s Office. He was admitted to practice before the state courts of New Jersey in 1994 and was admitted to practice before the state courts of New York in 1995.

After completing law school, he joined the law firm of O’Brien & Mayr in Rockville Centre New York representing clients in plaintiff’s personal injury cases with an emphasis on medical malpractice, premises liability and automobile negligence cases. Based upon this experience, Sean decided to focus his career on representing and protecting the injured and the families of victims of wrongful death.

*Results may vary depending on your particular facts and legal circumstances.*


  • Marquette University, Milwaukee, WI 1989
  • St. John’s University, Jamaica, NY 1994

Bar Admissions

  • New Jersey State Courts, 1994
  • District of New Jersey, 1994
  • New York State Courts, 1995
  • Eastern District of New York 1997
  • Southern District of New York 1997

Past Employment

  • Partner – Leonard Legal Group, Morristown, NJ 2008-2018
  • Managing Partner – Connelly & Connelly, West New York, NJ 2001-2008
  • Associate Attorney – Caesar & Napoli, New York, NY 1998-2001
  • Associate Attorney – O’Brien & Mayr, Rockville Centre, NY 1994-1998

Professional Associations and Memberships

  • New Jersey Association for Justice
  • American Association for Justice

Notable Cases

  • $2,800,000 pre-trial settlement for traumatic brain injury
  • $1,800,000 settlement at trial for wrongful death of minor
  • $1,500,000 pre-trial settlement for wrongful death of minor
  • $1,000,000 verdict for traumatic brain injury
  • $410,000 pre-trial settlement for leg fracture
  • $300,000 pre-trial settlement for lumbar disc injury
  • $295,000 pre-trial settlement for cervical disc injury
  • $205,000 verdict for hip injury
  • $200,000 verdict for lumbar disc herniation
  • $100,000 verdict for TMJ injury
  • $100,000 verdict for lumbar disc injury

Areas of Practice

  • Personal Injury Litigation
  • Municipal Litigation
  • Products Liability
  • Wrongful Death