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  1. Professionals

Sean Suber

Partner

Chicago

+1 312-558-3765

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  • Overview
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Sean is a trial and appellate lawyer who focuses his practice on complex litigation, class actions, product liability, and mass tort matters. He represents clients in a wide range of industry sectors, with a focus on guiding clients through all phases of litigation in the consumer products, media & entertainment, technology, and health care industries.

Sean has represented dozens of companies and individuals in high-profile cases, trials, appeals, and arbitrations. He routinely advises and represents clients that offer services to consumers or other businesses. Whether it is a claim of false advertising, defamation, a defective product, or a regulatory investigation or lawsuit, Sean focuses his practice on representing his clients to help them defend their reputations, brands, and businesses both inside and outside the courtroom.

He has extensive experience advising clients to avoid costly litigation but, when lawsuits are filed, Sean has crafted countless winning litigation strategies to either obtain an early dismissal or navigate cases through mediations, discovery, dispositive motions, trials, and appeals. He is experienced in all phases of litigation, including case assessment and strategy development; briefing and arguing motions in state and federal courts; managing all aspects of discovery in both complex and multidistrict litigation; taking and defending depositions; negotiating mediations and settlements; handling all aspects of trial preparation, trial, and arbitration; and briefing and arguing appeals in state and federal courts across the country.

Sean also maintains an active pro bono practice, representing indigent defendants in criminal matters and partnering with non-profits in litigation and appellate matters to dismantle systematic inequities in the criminal justice system.

Key Matters

Sean has significant experience in all aspects of litigation in federal and state courts from discovery through trial and appeal. Notable representations include:

Food & Beverage Litigation

  • Defending a food & beverage manufacturer in a billion-dollar multidistrict litigation class action arising from allegations that the food manufacturer systematically under-filled its coffee canisters.
  • Secured the complete dismissal of a proposed class action against a food & beverage manufacturer, which claimed that its Bagel Bite products falsely advertised that they are made with real mozzarella and tomato sauce.
  • Secured the complete dismissal of a proposed class action, which claimed that a food & beverage manufacturer misrepresented the amount of protein in their Peanut Butter & Strawberry snack sandwiches.
  • Secured the complete dismissal of a proposed class action, which claimed that a food & beverage manufacturer deceptively labeled its caramel flavored syrup for not having a “real” vanilla flavor.
  • Secured the complete dismissal of a claim that a food & beverage manufacturer falsely advertised dog food as being “wholesome,” “high-quality,” “safe,” and “complete & balanced.”
  • Secured the voluntary dismissal of a proposed class action, claiming that a food & beverage manufacturer falsely marketed its salad dressings as being free of preservatives when, in truth, the dressings contain Xanthan Gum.
  • Secured the complete dismissal of a claim that a food & beverage manufacturer deceived buyers of a dog food by labeling it as “natural” despite it allegedly having traces of weed killer.

Retail, Consumer Products, and Consumer Services Litigation

  • Representing consumer goods company in proposed class action, claiming that the company’s plastic bags are mislabeled and unable to keep products fresh.
  • Counseling and representing large national retailer in proposed class action that claims the retailer has failed to comply with the FTC’s pre-sale availability rule.
  • Obtained favorable settlement for two former chief executive officers and a former chief operating officer of the nation’s largest mutual insurance company in policyholder derivative action claiming that the executives failed to properly run the company to provide “insurance at cost.”

Product Liability and Mass Tort Litigation

  • Served as trial counsel in multiple product liability trials for an agricultural biotechnology corporation. Represented the company in its first eight-week jury trial, in which the trial team successfully reduced a punitive damages award by US$211M, and the verdict was further reduced on appeal. Then represented the company in a later case which led to an extremely favorable settlement on the verge of trial. 
  • Represented large aviation company in handling the discovery and initial litigation for the consolidated cases that resulted from aviation accidents in Indonesia and Ethiopia.
  • Defended medical device company in multiple product liability wrongful death actions resulting in favorable settlements for the client.

Appeals

  • Successfully oversaw the voluntary dismissal of several proposed class action victories against food & beverage manufacturers on appeal.
  • Briefed an appeal in the Federal Circuit, which affirmed a US$680K attorney fee award for our client after our opponents advanced an “unusually weak” position in litigation.
  • Briefed two high-profile appeals and the corresponding district court litigation in the Eleventh Circuit and the Eighth Circuit, which affirmed that our client did not arbitrarily create policies for the donation of kidneys and livers.
  • Briefed an appeal before the Third Circuit, which affirmed the rejection of a constitutional challenge to an occupancy tax imposed by our client, a territory of the United States.
  • Briefed and an appeal in the Fifth Circuit, which affirmed that our client was not for an ICD supposedly causing inappropriate shocks to a plaintiff’s heart.
  • Assisted with briefing and oral argument preparation for pharmaceutical company in qui tam appeal involving the scope of the FCA’s public disclosure bar.

First Amendment & Media Litigation

  • Defended a multibillion dollar case against a large media company that the New York Times said was “one of the most consequential First Amendment cases in a generation.”
  • Served as a member of the trial team in what had, at one point, been widely reported as the “largest” and “one of the most significant” defamation cases in U.S. history, helping to achieve a “historically large” settlement for a beef manufacturer in the middle of trial. 
  • Represented Illinois Lottery’s private manager in pre-publication counseling and negotiations with media publication about alleged failure to award prizes as promised.

Pro Bono

  • Briefed and argued an appeal in an Illinois Appellate Court, leading to the reversal of a conviction for the unlawful stop and arrest our client for carrying a cup of unidentifiable liquid at night.
  • Briefed and argued an appeal in the Eighth Circuit, securing the release of our client while pending appeal, and then helping with his compassionate release from federal prison under the First Step Act.
  • Principal drafter of an amicus brief before the Supreme Court for a group of legal scholars in support of a petition for certiorari addressing whether the “overwhelming evidence” standard should not be used to consider the potential effect of an error only on the government’s case as opposed to the case as a whole.
  • Principal drafter of an amicus brief before the Supreme Court for a group of Fourth Amendment scholars in support of a petition for certiorari addressing whether a pretextual search based on probable cause to suspect a mere parking violation is consistent with the Fourth Amendment.
  • Principal drafter of an amicus brief before the Fifth Circuit in support of individual appellants and the Attala County NAACP in their suit against Doug Evans, a District Attorney in Mississippi, for the discriminatory striking of Black jurors from criminal trials.
  • Principal drafter of an amicus brief before the Fifth Circuit in support of individual appellants in their suit against an ankle monitoring company and former judge of the Orleans Parish Criminal District Court (“OPCDC”), arguing that the judge’s personal, financial, professional, and political ties to the company resulted in him ordering or steering defendants to ankle monitoring services with company, in violation of the Due Process Clause.
Recent Experience
The J.M. Smucker Company Beats False Advertising Class Action
Secured Settlement for Fox on Brink of Trial in High-Profile Defamation Litigation Brought by US Dominion Voting Systems
Dismissal Obtained for Consumer Class Action Involving Ingredient False Labeling Claims
Secured Landmark Victory for BPI Against ABC News in Massive Defamation Case

  • Recognized by Best Lawyers: Ones to Watch®in America for Commercial Litigation and Mass Tort Litigation / Class Actions - Defendants in 2024
  • Recognized by Benchmark Litigation US, “40 & Under” List for Dispute Resolution, 2024–2025
  • Recognized by Legal 500 US as a “Key Lawyer” in the areas of Product Liability, Mass Tort and Class Action - Defense: Consumer Products (Including Tobacco) and Media, Technology and Telecoms: Advertising and Marketing: Litigation, 2023–2024
  • Recognized in Lawdragon’s “500 X – The Next Generation,” 2023
  • Recognized by The National Black Lawyers (NBL), “Top 40 Under 40,” 2020

Sean is active in his local community, serving on the Nonprofit Boards of the Uptown People’s Law Center and Just the Beginning – A Pipeline Organization.

In 2020, Sean was selected as a Pathway to Partnership Fellow by the Chicago Committee on Minorities in Large Law Firms. In 2018, he was selected to be a Pathfinder for the Leadership Council on Legal Diversity (LCLD).

Capabilities

Advertising Litigation
Appellate & Critical Motions
Class Actions & Group Litigation
Commercial Litigation & Disputes
Product Liability & Mass Torts
Environmental Litigation & Enforcement
Public Companies
Food & Beverage
Health Care
Life Sciences
Retail & Luxury
Technology, Media & Telecommunications

Key Matters

Sean has significant experience in all aspects of litigation in federal and state courts from discovery through trial and appeal. Notable representations include:

Food & Beverage Litigation

  • Defending a food & beverage manufacturer in a billion-dollar multidistrict litigation class action arising from allegations that the food manufacturer systematically under-filled its coffee canisters.
  • Secured the complete dismissal of a proposed class action against a food & beverage manufacturer, which claimed that its Bagel Bite products falsely advertised that they are made with real mozzarella and tomato sauce.
  • Secured the complete dismissal of a proposed class action, which claimed that a food & beverage manufacturer misrepresented the amount of protein in their Peanut Butter & Strawberry snack sandwiches.
  • Secured the complete dismissal of a proposed class action, which claimed that a food & beverage manufacturer deceptively labeled its caramel flavored syrup for not having a “real” vanilla flavor.
  • Secured the complete dismissal of a claim that a food & beverage manufacturer falsely advertised dog food as being “wholesome,” “high-quality,” “safe,” and “complete & balanced.”
  • Secured the voluntary dismissal of a proposed class action, claiming that a food & beverage manufacturer falsely marketed its salad dressings as being free of preservatives when, in truth, the dressings contain Xanthan Gum.
  • Secured the complete dismissal of a claim that a food & beverage manufacturer deceived buyers of a dog food by labeling it as “natural” despite it allegedly having traces of weed killer.

Retail, Consumer Products, and Consumer Services Litigation

  • Representing consumer goods company in proposed class action, claiming that the company’s plastic bags are mislabeled and unable to keep products fresh.
  • Counseling and representing large national retailer in proposed class action that claims the retailer has failed to comply with the FTC’s pre-sale availability rule.
  • Obtained favorable settlement for two former chief executive officers and a former chief operating officer of the nation’s largest mutual insurance company in policyholder derivative action claiming that the executives failed to properly run the company to provide “insurance at cost.”

Product Liability and Mass Tort Litigation

  • Served as trial counsel in multiple product liability trials for an agricultural biotechnology corporation. Represented the company in its first eight-week jury trial, in which the trial team successfully reduced a punitive damages award by US$211M, and the verdict was further reduced on appeal. Then represented the company in a later case which led to an extremely favorable settlement on the verge of trial. 
  • Represented large aviation company in handling the discovery and initial litigation for the consolidated cases that resulted from aviation accidents in Indonesia and Ethiopia.
  • Defended medical device company in multiple product liability wrongful death actions resulting in favorable settlements for the client.

Appeals

  • Successfully oversaw the voluntary dismissal of several proposed class action victories against food & beverage manufacturers on appeal.
  • Briefed an appeal in the Federal Circuit, which affirmed a US$680K attorney fee award for our client after our opponents advanced an “unusually weak” position in litigation.
  • Briefed two high-profile appeals and the corresponding district court litigation in the Eleventh Circuit and the Eighth Circuit, which affirmed that our client did not arbitrarily create policies for the donation of kidneys and livers.
  • Briefed an appeal before the Third Circuit, which affirmed the rejection of a constitutional challenge to an occupancy tax imposed by our client, a territory of the United States.
  • Briefed and an appeal in the Fifth Circuit, which affirmed that our client was not for an ICD supposedly causing inappropriate shocks to a plaintiff’s heart.
  • Assisted with briefing and oral argument preparation for pharmaceutical company in qui tam appeal involving the scope of the FCA’s public disclosure bar.

First Amendment & Media Litigation

  • Defended a multibillion dollar case against a large media company that the New York Times said was “one of the most consequential First Amendment cases in a generation.”
  • Served as a member of the trial team in what had, at one point, been widely reported as the “largest” and “one of the most significant” defamation cases in U.S. history, helping to achieve a “historically large” settlement for a beef manufacturer in the middle of trial. 
  • Represented Illinois Lottery’s private manager in pre-publication counseling and negotiations with media publication about alleged failure to award prizes as promised.

Pro Bono

  • Briefed and argued an appeal in an Illinois Appellate Court, leading to the reversal of a conviction for the unlawful stop and arrest our client for carrying a cup of unidentifiable liquid at night.
  • Briefed and argued an appeal in the Eighth Circuit, securing the release of our client while pending appeal, and then helping with his compassionate release from federal prison under the First Step Act.
  • Principal drafter of an amicus brief before the Supreme Court for a group of legal scholars in support of a petition for certiorari addressing whether the “overwhelming evidence” standard should not be used to consider the potential effect of an error only on the government’s case as opposed to the case as a whole.
  • Principal drafter of an amicus brief before the Supreme Court for a group of Fourth Amendment scholars in support of a petition for certiorari addressing whether a pretextual search based on probable cause to suspect a mere parking violation is consistent with the Fourth Amendment.
  • Principal drafter of an amicus brief before the Fifth Circuit in support of individual appellants and the Attala County NAACP in their suit against Doug Evans, a District Attorney in Mississippi, for the discriminatory striking of Black jurors from criminal trials.
  • Principal drafter of an amicus brief before the Fifth Circuit in support of individual appellants in their suit against an ankle monitoring company and former judge of the Orleans Parish Criminal District Court (“OPCDC”), arguing that the judge’s personal, financial, professional, and political ties to the company resulted in him ordering or steering defendants to ankle monitoring services with company, in violation of the Due Process Clause.
Recent Experience
The J.M. Smucker Company Beats False Advertising Class Action
Secured Settlement for Fox on Brink of Trial in High-Profile Defamation Litigation Brought by US Dominion Voting Systems
Dismissal Obtained for Consumer Class Action Involving Ingredient False Labeling Claims
Secured Landmark Victory for BPI Against ABC News in Massive Defamation Case

Credentials

Education

Sean received his J.D. in 2014 from the University of Virginia School of Law, where he was the vice president of the Black Law Students Association, a Public Interest Law Association Grantee, and served on the editorial boards of the Journal of Law and Politics and the Virginia Journal of Social Policy & the Law. He received a B.A. in government and history in 2011 from Georgetown University, where he was a member of the University’s Advisory Committee for Business Practices and a school record holder on the University’s Track and Field Team.

    Admissions
    • Maryland
    • Illinois
    Clerkships
    • USCA - Third Circuit for the Honorable Thomas I. Vanaskie
    • USDC - Eastern District of MI for the Honorable Gershwin A. Drain
    • USCA - Third Circuit for the Honorable Thomas I. Vanaskie
    • USDC - Eastern District of MI for the Honorable Gershwin A. Drain

    Related Insights & News

    Publications & Speaking Engagements

    • Current Litigation Trends in the Food and Beverage Industry: The In-House Perspective, New York City Bar Association, Sept. 7, 2022
    • Appeals and Critical Motions: Laying the Groundwork for a Successful Outcome, Winston & Strawn Product & Mass Torts Summit, Co-speaker, June 7, 2022
    • Current Developments in Preemption, Winston & Strawn Product & Mass Tort Summit, Co-speaker, May 26, 2021
    • The Senseless Census: An Administrative Challenge to Prison Based Gerrymandering, 21Virginia Journal Of Social Policy & The Law 471, 2014
    Recognitions
    Winston Attorneys Selected for 2025 LCLD Fellows and Pathfinder Programs

    February 18, 2025

    Blog
    Winston Holds DEI Retreat in Nashville

    October 30, 2024

    Webinar
    Bite-Sized Insights: Legal Trends Impacting the Food & Beverage Industry

    October 8, 2024

    Recognitions

    Winston & Strawn Recognized in 2025 Benchmark Litigation

    October 3, 2024

    Recognitions
    Winston Partners Named to Benchmark Litigation’s 2024 40 & Under List

    August 8, 2024

    Recognitions
    Winston & Strawn Recognized in The Legal 500 U.S. 2024

    June 12, 2024

    Blog
    Class Action Insider Spotlight on Partner Sean Suber

    May 31, 2024

    Recognitions
    Winston Team Led by Sam Mendenhall Featured in Litigator of the Week Column

    October 27, 2023

    Recognitions
    Winston Attorneys Recognized in Best Lawyers: Ones to Watch® in America 2024

    August 17, 2023

    Recognitions
    Winston Attorneys Featured on Lawdragon’s Inaugural 500 X – The Next Generation List

    July 7, 2023

    Recognitions
    Winston & Strawn Recognized in The Legal 500 U.S. 2023

    June 7, 2023

    News
    2022 Pro Bono Impact Report

    May 1, 2023

    View All Insights & News

    Capabilities

    Advertising Litigation
    Appellate & Critical Motions
    Class Actions & Group Litigation
    Commercial Litigation & Disputes
    Product Liability & Mass Torts
    Environmental Litigation & Enforcement
    Public Companies
    Food & Beverage
    Health Care
    Life Sciences
    Retail & Luxury
    Technology, Media & Telecommunications
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