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John L. O'Brien

John L. O'Brien


CT – Hartford area
T: 860.413.2711 | F: 860.413.2801


John is the chair of the Connecticut Workers’ Compensation practice group. His practice includes workers’ compensation, subrogation and general insurance defense matters at the trial and appellate levels. John is a third generation Workers’ Compensation practitioner, and the Connecticut Bar Association Workers’ Compensation Section Award for Career Excellence in the Field is named, in part, for his grandfather Commissioner Edward D. O’Brien, Sr.

John represents insurers and employers at informal, pre-formal and formal hearings before the Connecticut Workers’ Compensation Commission in all eight districts, and during appeals before the Compensation Review Board. John handles all aspects of workers’ compensation defense and also advises clients relative to Medicare reporting requirements regarding set-asides and conditional payment inquiries as they relate to settlements. John also frequently provides complimentary training to clients regarding workers’ compensation claim handling procedures. John’s practice includes a concentration in non-medical professional liability, premises liability, and employment and labor law litigation.


  • Defended a steel manufacturer against claims asserted by multiple subcontracts relative to the principal employer doctrine, C.G.S. Sect. 31-291
  • Defended a hotel against a claim for survivor’s benefits asserted by claimant’s surviving spouse
  • Defended an employer relative to an occupational disease claim regarding kidney cancer
  • Defended an employer relative to an occupational disease claim relative to asbestosis
  • Defended condominium association and managing agent against claim for personal injuries relative to alleged defective condition
  • Estate of Torres v. Berline Line Apartments, LLC, No. HHDCV106016042, 2016 WL 2602482 (Conn. Super. CT. April, 12, 2016)
  • Yuditski v. Dibico Const. of Connecticut, Inc., No. CV126024517S, 2015 WL 5135034 (Conn. Super. Ct. July 27, 2015)
  • Mehta v. Ace Am. Ins. Co., No. 3:10-CV-1617 RNC, 2015 WL 1456834 (D. Conn. Mar. 30, 2015)
  • Sarg v. Greens Ass’n, Inc., No. 126029403, 2014 WL 5472222 (Conn. Super. Ct. Sep. 29, 2014)
  • Harris v. Nutmeg Bowl, Inc., No. FBTCV136035686S, 2013 WL 5716831 (Conn. Super. Ct. Oct. 1, 2013)
  • Marron v. Grala, CV126016399, 2013 WL 388169 (Conn. Super. Ct. Jan. 2, 2013)