Mr. Mason is a senior shareholder of the national civil litigation law firm of Segal McCambridge Singer & Mahoney where he serves as Co-Chair of the firm's Insurance Coverage/Bad Faith Practice Group. Mr. Mason is a C-Suite advisor to a diverse array of international businesses providing business counseling, risk management, and trial and appellate litigation solutions. His complex commercial litigation experience includes a concentration in insurance and reinsurance coverage, product liability, contract, environmental, toxic tort, construction, cyber liability, and professional liability issues. In addition to Mr. Mason's trial and appellate work, he is retained as an expert witness, mediator, arbitrator and appraiser.
Mr. Mason is frequently called upon to protect the interests of insurers and reinsurers in complex insurance coverage disputes and to defend their insureds concerning a variety of third-party liability issues. Mr. Mason has extensive experience in the effective handling of large catastrophe losses and the complex cross-discipline problems that arise from these claims. His practice encompasses a broad spectrum of first-party and third-party coverage, reinsurance, and defense issues.
In addition to Mr. Mason's experience with product liability-related insurance and reinsurance coverage challenges, including product recall, contamination and liability risks, he has successfully defended manufacturers against claims of negligent product design, failure to warn, and breach of warranties. Mr. Mason has additionally counseled clients in litigation liability prevention, product recall campaigns, and the development of product package warnings and owner/operator manuals. Mr. Mason also has represented architects, engineers, contractors, and owners in a number of complex cases including breach of contract, failure of duty, environmental, and building design issues.
Mr. Mason regularly writes on legal issues impacting international business and is a frequent speaker at industry trade conferences, continuing education programs, and client training seminars. His peers give him a Martindale-Hubble “AV” Rating, the highest available, and have consistently recognized him as an Illinois Super Lawyer and a Leading Lawyer. Among his many professional and civic activities, Mr. Mason serves on the Board of Directors of Ashmere Insurance Company (f/k/a American Fuji Fire and Marine Insurance Company), and Spinnaker Insurance Company (f/k/a Woodridge Insurance Company f/k/a American General Indemnity Company).
Mr. Mason received his Juris Doctorate degree from the University of Illinois College of Law. He is admitted to practice in Illinois, New York, Wisconsin, the U.S. Supreme Court, various federal district courts and courts of appeals, and on a pro hac vice basis in various state court jurisdictions throughout the United States.
- PLRB/LIRB Claims Conference & Insurance Services Expo Outstanding Presentations Award (March 2013).
- Circuit Court of Cook County, Illinois Mandatory Arbitration Program, Past Arbitrator/Chairman
- Martindale-Hubbell AV Preeminent® Peer Review Rated
- Recognized as an Illinois Leading Lawyer (a designation limited to less than 5% of all lawyers licensed to practice law in Illinois) in the areas of Insurance, Insurance Coverage, and Reinsurance Law and in Products Liability Defense Law, nominated and selected by peers in the legal community (2012-2017)
Selected for inclusion in the Illinois Super Lawyers list (no more than 5% of lawyers in the state are selected), nominated and selected by peers in the legal community (2005-2017)
- Recognized as a 2014 Top Rated Lawyer in Insurance Law by American Lawyer Media and Martindale-Hubbell®
- Recognized as a 2013 Top Rated Lawyer in Energy/Environmental by American Lawyer Media and Martindale-Hubbell®
Professional & Civic Involvement
- American Bar Association
- Chicago Bar Association
- Defense Research Institute
- Federal Trial Bar
- Illinois State Bar Association
- Loss Executives Association
- Claims and Litigation Management Alliance (CLM)
- New York State Bar Association
- Professional Liability Underwriting Society
- Wisconsin State Bar Association
- Ashmere Insurance Company (f/k/a American Fuji Fire & Marine Insurance Company), Board of Directors
- Spinnaker Insurance Company (f/k/a Woodridge Insurance Company f/k/a American General Indemnity Company), Board of Directors, Member of Investment and Independent Committees
- North Trail Homeowners Association (Deerfield, IL), Board of Directors, Treasurer
- Congregation Solel (Highland Park, Illinois): Past President; Trustee Endowment Fund; Chair Facilities Strategic Planning Task Force; Co-Chair Cantorial Search Committee
- Member, Property and Liability Resource Bureau Conference Committee
- Coverage counsel/co-author of integrated general liability, pollution liability, and cyber & data protection policy form (with corresponding endorsements) for a major surplus lines insurer
- Coverage, trial and appellate counsel in several multi-party insurance coverage declaratory judgment disputes arising out of thousands of complaints where the underlying plaintiffs alleged bodily injury caused by exposure to benzene and asbestos-containing materials.
- Trial counsel in defense of Argonne National Laboratory in multiple actions including contract disputes, alleged toxic exposure, construction negligence, and premises liability cases.
- Secured a $13 million-plus settlement for damages and lost profits as trial counsel for a global asset management unit of a Fortune 250 corporation in a loss recovery action arising out of a commercial contract dispute following a hotel fire.
- Obtained a $2.3 million settlement from a global franchisor as trial counsel for a franchisee in a breach of franchise agreement dispute involving unfair competitive practices and fraud.
- Expert witness in federal court legal malpractice cases arising out of allegedly flawed insurance coverage opinions and litigation advice.
- Trial and appellate counsel in multi-party insurance coverage declaratory judgment action involving NCR's liability claim pertaining to PCB contamination of the Lower Fox River in Wisconsin.
- Trial counsel for major U.S. insurer in successful defense against Wells Fargo Bank's Uniform Commercial Code claim for insurance benefits previously paid to bankrupt insured.
- Defense trial counsel in products liability actions against major international bus manufacturer in multiple jurisdictions, including allegations of faulty design.
- Successfully defended world-wide engineering and tunneling contractor against multiple claims of property damage to historically landmarked buildings located in immediate vicinity of subterranean municipal sewer project.
- Coverage counsel for major national property and casualty insurer for all claims arising out of the April 2010 BP Gulf of Mexico oil spill.
- Trial counsel in multi-jurisdiction declaratory judgment actions to reform historic commercial general liability policies to reflect intent to include Asbestos Exclusions.
- Coverage and trial counsel for law enforcement/municipal liability insurer concerning civil rights violations/wrongful imprisonment claims throughout the United States.
- Reinsurance counsel in representation of fronting captive insurer's ceded claims to multiple foreign and domestic reinsurers following settlement of complex multi-occurrence declaratory judgment action.
- Trial and appellate counsel representing 12 insurers in the multi-site environmental coverage action involving claims in excess of $700 million brought by Alcoa against its historic property and liability carriers.
- Trial and appellate counsel representing 11 insurers in PPG Industries' in excess of $500 million environmental coverage lawsuit, which resulted in favorable summary judgment rulings and/or settlements for less than the costs of defense.
- Trial and appellate counsel representing six insurers in the Port Authority of New York and New Jersey's $1 billion lawsuit to remove asbestos from all of its buildings, resulting in the Third Circuit Court of Appeal's landmark ruling affirming summary judgment in clients' favor.
- Segal McCambridge Insurance Coverage Team Wins Dismissal of Bank Complaint Seeking Recovery of Insurance Proceeds Based on the Uniform Commercial Code7.16.12
- Segal McCambridge Attorneys Larry Mason and John Lee Obtain a Summary Judgment Dismissal of a Federal Court Environmental Insurance Coverage Action3.22.12
- San Antonio, TX, 4.17.16
Segal McCambridge firmwide CE/CLE, "Insurance Coverage: What Every Insurance Defense Attorney Needs to Know" (August 8, 2016).
2016 Property & Liability Resource Bureau Claims Conference, “Emerging CGL Risks: Coverage Strategies & Solutions” San Antonio, TX (April 17-20, 2016)
"Protecting your Laboratory from Cyber Attacks: What Senior Management and Directors Need to Know Now" ACIL Webinar (September 22, 2015).
GWSCA 2nd Annual Conference on Warranty & Service Contracts "The Growing Risk of Cyberliability for Warranty and Service Contract Providers: Proactive Strategies for Protecting Your Company" Chicago, Illinois (September 16-18, 2015)
2015 Property & Liability Resource Bureau Claims Conference,"Catastrophic Products Liability Claims Adjusting" Anaheim, California (March 29-31, 2015).
Strafford Live Webinars, "Stacking Commercial Insurance Coverage: Insurer and Policyholder Perspectives" (February 4, 2015).
Property & Liability Resource Bureau 2014 Eastern Regional Adjusters Conference, Providence, RI, “Concurrent Causation in Personal Auto and Homeowners Liability Coverage” (November 18-19, 2014).
American Council of Independent Laboratories Annual Meeting, Chicago, IL, “Proactive Strategies for Reducing Laboratory Litigation Risks” (October 5-8, 2014).
Property & Liability Resource Bureau 2014 Central Regional Adjusters Conference, Minneapolis, MN, “Concurrent Causation in Personal Auto and Homeowners Liability Coverage” (September 16-17, 2014).
Property & Liability Resource Bureau 2014 Western Regional Adjusters Conference, Bellevue, WA, “Concurrent Causation in Personal Auto and Homeowners Liability Coverage” (June 10-11, 2014).
PLRB Claims Conference, Indianapolis, IN, "Catastrophic Products Liability Claims Adjusting" (March 16-19, 2014).
Segal McCambridge firmwide presentation, "In Search of a Healthier Approach to Nutrition & Exercise: A Litigator's Personal Journey" (July 17, 2013).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, Boston, MA, "Concurrent Causation in Liability Cases" (March 17-20, 2013).
Chicago Bar Association Young Lawyers Section (YLS) Insurance Coverage Committee Seminar, Chicago, IL, "Climate Change Litigation: Liability & Coverage" (November 29, 2012).
Segal McCambridge firmwide CE/CLE, "Insurance Coverage: What Every Insurance Defense Attorney Should Know" (October 16, 2012).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, Orlando, FL, "Climate Change: Liability & Coverage" (April 15-18, 2012).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, Nashville, TN, "Environmental Catastrophes: Liability & Coverage" (April 4-6, 2011).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, San Antonio, TX, "Complex Environmental Liability Claims" (March 22-23, 2010).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, Seattle, WA, "Effective Communication Strategies for Claims Adjusters: Working With Defense Counsel" (March 23-25, 2009).
On The Coverage Campaign Trail CE/CLE Seminar, Chicago Bar Association, Chicago, IL, "Lines Of Communication: The Importance Of Continued Communication Between Insurer And Insured" (November 5, 2008).
Nationwide Indemnity Environmental Claims Unit, "Exclusions Relevant to Construction Defect Claims" (October 28, 2008).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, Boston, MA, "Duty to Cooperate Under Third-Party Liability Policies" (April 13-16, 2008).
2007 SMSM "Extended" Warranty Seminar - Influencing & Shaping the Law, Dearborn, MI, "Insurance Coverage Issues Impacting Product Liability Claims" (October 18-19, 2007).
Nationwide Indemnity Environmental Claim Unit, "Third Party 'Economic Loss' Issues" and "'Personal Injury' Coverage and the TPE" (September 17, 2007).
Sompo Japan Insurance Company of America, "Duty to Cooperate Under Third-Party Liability Policies" (April 2007).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, "Duty to Cooperate Under Third-Party Liability Policies" (March 2007).
Alumni-Student Career Conference, University of Illinois College of Law, Moderator: "The Insider's Perspective on Summer Associate Evaluations" and Panelist: "Litigation v. Transactional" and "Large Firms v. Small Firms" (January 27, 2007).
Product Liability Advisory Council's Fall Insurance Coverage Disputes Conference, Colorado Springs, CO, "Understanding the Insured's Rights and Obligations" (October 2006).
Chicago Bar Association's Spring Seminar, Chicago, IL, "Emerging Issues in Insurance Coverage" (May 24, 2006).
Nationwide Indemnity Environmental Claim Unit, "Duty to Cooperate Under Third-Party Liability Policies: A Proactive Approach to Dealing With the Difficult Insured" (December 2005).
Mealey's Insurance 101, Philadelphia, PA, "Understanding the Anatomy of the Insurance Market, The Players & Their Interactions--An Overview" (February 28, 2005).
Nationwide Indemnity Environmental Claim Unit, "Working With Defense Counsel: Effective Communication Strategies for Claims Adjusters" (August 2004).
Commonwealth Insurance Company "Ten Things Everyone Should Know About Duty to Defend" (May 2004).
Commonwealth Insurance Company, "Liability Insurance Coverage Issues and Analysis: An Overview of Wisconsin Law" (May 2004).
Property & Liability Resource Bureau PLRB/LIRB Claims Conference, "Property Claims Adjusting: Communication Interplay Between Insurer and Insured Representatives--Dealing with the Difficult Insured" (March 2003).
Articles & Publications
- “Keeping the Faith. First-Party Property Insurance Extracontractual Liability Arising From Preferred Vendors”Claims Management Magazine, 3.15
"The Role of Liability Insurance Policy Notice Conditions in Laboratory Liability Claims," Industry Insights, American Council of Independent Laboratories, Issue No. 4 (November 2014).
"Recent Laboratory Legal Developments," Industry Insights, American Council of Independent Laboratories, Issue No. 1 (2014).
"The Erosion of the Duty to Cooperate Under CGL Policies: An Overview of Cases Across the Nation," 2008 Emerging Issues LEXIS 209 (March 25, 2008).
"Illinois Supreme Court Update: Horizontal Exhaustion Supersedes Targeted Tender Rule," Segal McCambridge Singer & Mahoney's Insurance Coverage Newsletter, Volume 2, Issue 1 (2008).
"The Role of Liability Insurance Policy Notice Conditions In Product Liability Claims," Segal McCambridge Singer & Mahoney's Insurance Coverage Newsletter, Volume 1, Issue 1 (2007).
"Will Illinois' Targeted Tender Rule Survive The Horizontal Exhaustion Doctrine?" Segal McCambridge Singer & Mahoney's Insurance Coverage Newsletter, Volume 1, Issue 1 (2007).
"New York Court Of Appeals Rejects GE's Attempt To Have Its Asbestos Claims Grouped As A Single Occurrence To Trigger Excess Coverage," Segal McCambridge Singer & Mahoney's Insurance Coverage Newsletter, Volume 1, Issue 1 (2007).
"State Law Updates - New York," Segal McCambridge Singer & Mahoney's Toxic Tort Newsletter, Volume 6, Issue 3 (Fall 2007).
"Case Notes: New York Court of Appeals Rejects GE's Attempt to Have its Asbestos Claims Grouped as a Single Occurrence to Trigger Excess Coverage," Segal McCambridge Singer & Mahoney's New York Advocate, Volume 1, Issue 2 (Summer 2007).
"Global Warming Has Not Inspired Wave of Lawsuits," Business Insurance (April 30, 2012).
"Common Exclusions in the First-Party Property Insurance Policy and Their Application to Environmental Claims," Tort and Insurance Practice Journal (Spring 1995).
- CLIENT ALERT: New York Court of Appeals Applies "All Sums" Allocation and Vertical Exhaustion Where Non-Cumulation Provisions Exist in Asbestos-Related Excess Coverage Dispute5.20.16
- ALERT: Seventh Circuit Negates Need for a Certificate of Insurance Before Loss - CGL Coverage Exists for an Additional Insured if an Oral Agreement Prior to Covered Event1.6.16
- Flexdar – Bad News from the Indiana Supreme Court3.23.12
- Insurance & Reinsurance Litigation & Counseling
- Complex Commercial Litigation
- Business Torts
- Construction Litigation & Counseling
- Product Liability
- Architects & Engineers
- Cyber Risk & Liability
- Discrimination, Harassment & Hostile Workplace Claims
- Employment Litigation & Counseling
- Insurance Coverage
- Social Media & Privacy
- Workers' Compensation
University of Illinois, B.A. (Economics and Political Science), 1986
University of Illinois College of Law, J.D., 1989
- Illinois, 1989
- New York, 1996
- Wisconsin, 2004
- U.S. Supreme Court
- U.S. Court of Appeals, Third Circuit
- U.S. Court of Appeals, Seventh Circuit
- U.S. Court of Appeals, Ninth Circuit
- U.S. District Court, Central District of Illinois
- U.S. District Court, Northern District of Illinois
- U.S. District Court, Northern District of Indiana
- U.S. District Court, Southern District of Indiana
- U.S. District Court, Eastern District of Michigan
- U.S. District Court, Western District of Pennsylvania
- U.S. District Court, Eastern District of Virginia
- U.S. District Court, Eastern District of Wisconsin
- U.S. District Court, Western District of Wisconsin
- Admitted pro hac vice in various jurisdictions throughout the United States