Paul K. Leary, Jr.

Co-Vice Chair, Business Litigation


(215) 665-6911

(215) 665-2013

Paul is a senior trial attorney, handling complex litigation on behalf of multinational companies in the hospitality, transportation, construction, retail, private equity, and product manufacturing industries. Paul is co-vice chair of the firm’s Business Litigation Group and a member of the board of directors. 

In more than 20 years of practice with Cozen O’Connor, Paul has secured numerous defense verdicts in high-exposure product liability, construction, transportation, dietary supplement, complex commercial, and mass tort/class action trials. He has successfully mediated, arbitrated, and tried multiparty complex litigation, mass tort, and class actions in the toughest state and federal court jurisdictions in the country.

Recent noteworthy achievements include Paul’s successful defense of: all litigation arising from construction of Pennsylvania’s tallest skyscraper (Comcast Technology Center); a propeller manufacturer through a three-week trial in a case of first impression; a multinational hotel corporation in connection with the bombing of an Islamabad hotel; a terminal owner in a multimillion dollar exposure resulting from an oil spill in the Los Angeles harbor; a company implicated in a $60 million claim for alleged contamination of a hospital sterilization unit; and a national transportation company in a three-week, seven-figure trial. Paul also led the defense of mass tort litigation involving dietary supplements and represented a private equity firm in claims against fraudulent corporate sellers.

Paul serves as national litigation and coordinating trial counsel to well-known Fortune 500 companies. He understands client industries and operations and partners with clients to develop effective risk management protocols, emergency response systems, and coordinated litigation/trial strategies. Paul currently serves as national dram shop counsel to a restaurant conglomerate, trying high-exposure cases and conducting employee trainings across the country. He also serves as national trial counsel to the largest distributor of exterior and interior building products in the United States. Paul formed a client-dedicated emergency response team, enabling immediate crisis response and efficient litigation management.

Paul received his undergraduate degree from Fairfield University and was awarded the Eastern College Athletic Conference Medal of Merit for excellence on the hockey rink and in the classroom. After several years in the corporate world at a global insurance company, Paul attended Pace University School of Law, earning his J.D. in 1998. Paul is a graduate of the FBI's Honors Intern Program and earned a trial certificate from the International Association of Defense Counsel Trial Academy at Stanford Law School. 

Paul is a member of the board of directors of the Philadelphia Police Foundation, Police Athletic League (PAL), and Business Leadership Organized for Catholic Schools (BLOCS). He is a director on the Membership Development Committee for Philadelphia Country Club and mentor for the Haverford Hawks ice hockey program. Outside of work, Paul coaches and watches his three children play lacrosse and basketball and he is an avid golfer.




Cozen O’Connor Trial Team Led by Paul Leary Named to Top 20 Verdicts in California 2020 List

May 14, 2021

Cozen O’Connor is pleased to announce that a trial team led by Paul Leary has been chosen as a winner of one of the Top 20 Verdicts in California in 2020.

Cozen O’Connor Wins Major Lawsuits Involving Philadelphia’s Comcast II Tower Project and a California Oil Spill

February 24, 2020

Cozen O’Connor today announced it has secured major wins in two high-profile commercial litigation cases, one in Pennsylvania and the other in California.

Fifty-four Cozen O’Connor Attorneys Named 2018 Pennsylvania Super Lawyers and Rising Stars

June 12, 2018

Super Lawyers has named 54 Cozen O'Connor attorneys to its 2018 Pennsylvania Super Lawyers and Rising Stars lists.

Paul Leary Named to Board of Directors of PAL and BLOCS

March 31, 2015

Paul Leary, a member of Cozen O’Connor’s Commercial Litigation Department, has recently been named to the Board of Directors of both the Police Athletic League (PAL) and the Business Leadership Organized for Catholic Schools (BLOCS).

Cozen O’Connor’s Paul Leary Named To Philadelphia Business Journal’s “40 Under 40”

May 01, 2009

Cozen O’Connor’s Paul Leary Named To Philadelphia Business Journal’s “40 Under 40”

Cozen O’Connor Member Paul K. Leary Jr. Named Member Of IADC

July 17, 2008

Cozen O’Connor Member Paul K. Leary Jr. Named Member Of IADC


Summer 2008 [Commercial Disputes Observer]

July 27, 2008

Summer 2008 - Commercial Disputes Observer -

Events & Seminars

Past Events

Managing Litigation in a Family Context

June 05, 2019 - Boston, Massachusetts

Critical Issues in Litigation – 2016

November 03, 2016 - New York, NY

Critical Issues in Litigation – 2015

May 20, 2015 - New York, NY

IADC: Arbitration 101

December 06, 2011 - Webinar

PLRB/LIRB 2008 Claims Conference

April 13, 2008 - Boston, MA

PLRB/LIRB Large Loss Conference

November 26, 2007 - Washington, D.C.

Industry Sectors


  • Pace University School of Law, J.D., 1998
  • Fairfield University, B.S., 1992

Awards & Honors

 "Irish Legal 100" - 2015-2019

“Pennsylvania Super Lawyer – Rising Star” by Law & Politics - 2007

International Association of Defense Counsel (IADC) - accepted for membership, 2008

40 Under 40 receipt by the Philadelphia Business Journal -  2009

Pennsylvania's Super Lawyers - 2012-2017

  • New Jersey
  • New York
  • Pennsylvania
  • Court Of Common Pleas - Philadelphia County
  • New York Supreme Court
  • Pennsylvania Supreme Court
  • Superior Court of New Jersey
  • Superior Court of Pennsylvania
  • Supreme Court of New Jersey
  • U.S. District Court -- Eastern District of New York
  • U.S. District Court -- Eastern District of Pennsylvania
  • U.S. District Court -- New Jersey
  • U.S. District Court -- Southern District of New York
  • U.S. District Court -- Western District of Pennsylvania
  • American Bar Association
  • Defense Research and Trial Lawyers Association
  • International Association of Defense Counsel
  • Philadelphia Bar Association