John J. O'Sullivan


John O'Sullivan is a partner at Swanson, Martin & Bell, LLP in Chicago. He is a chair of the firm's Asbestos Litigation Practice Group. He has served as national coordinating, national trial and local counsel for premises and products defendants in toxic tort cases, including asbestos, since 1999. He has represented premises and product defendants at trial in more than a dozen jurisdictions. He has been a presenter at both HarrisMartin and Andrews asbestos seminars on topics ranging from defense of premises cases to liability of equipment manufacturers for replacement parts and external insulation.


Asbestos Litigation
Toxic Tort Litigation
Environmental Law

Memberships & Affiliations

  • Chicago Bar Association
  • Illinois State Bar Association
  • American Bar Association
  • Illinois Trial Lawyers Association


October 18, 2023
Swanson, Martin & Bell, LLP Partners Sponsor American Heart Association's Counsel for a Cause
Swanson, Martin & Bell, LLP Partners John P. Arranz, Ross W. Bartolotta, Steven E. Danekas, Michael W. Drumke, P. Stephen Fardy, George F. Fitzpatrick, Jr., McRay Judge, Timothy G. Nickels, John J. O'Sullivan, David F. Pardys, Gary C. Pinter, T. Allon Renfro, Kristine C. Reveille, Christopher T. Sheean, Robert W. Stephens and Marcie J. Vantine are proud sponsors of the American Heart Association’s (AHA) 8th Annual Chicago Counsel for a Cause event on October 19.

Chicago, St. Louis, Madison County, March 28, 2019
Kawala, O'Sullivan Named BTI Client Service All-Stars
Kawala and O'Sullivan were two of 335 individual attorneys from 153 law firms nominated to the BTI Client Service All-Stars 2019.

Chicago, February 7, 2017
O'Sullivan Named to BTI Client Service All-Star Attorneys List
O'Sullivan was one of 319 attorneys to be named by clients for superior client service.

  • Bar Admissions
  • Education
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