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Jennifer Tomsen focuses on litigation and arbitration, concentrating on labor and employment claims as well as commercial matters for financial institutions. She regularly practices before the Financial Industry Regulatory Authority (FINRA), AAA, and JAMS as well as in state and federal courts. She has defended claims of racial, religious, disability, age, and sexual orientation discrimination, retaliation, whistleblowing, selling away, tortious interference, noncustomer claims, and U-5 defamation. She has also handled various matters for bank clients, including claims involving unauthorized checks and wire transfers. Her representations have included defending broker-dealers in customer disputes and regulatory matters. In addition, Jennifer has represented clients in a wide variety of other commercial disputes.


  • Employment arbitration and litigation
  • Commercial litigation



Employment Cases

  • Handled numerous employment matters, including claims of:
    • gender, race, age, disability, religion, and sexual orientation discrimination
    • sexual harassment
    • retaliation
    • whistleblowing
    • U-5 defamation
    • wrongful termination
    • tortious interference
    • constructive discharge
    • promissory note claims and other compensation disputes
  • Participated in defense of major healthcare company in independent contractor misclassification FLSA collective action.

Securities Cases

  • Represented major broker-dealers and other securities industry participants in numerous arbitration hearings before the Financial Industry Regulatory Authority (formerly the National Association of Securities Dealers and the New York Stock Exchange) and JAMS in a wide variety of employment matters and in customer claims including suitability, selling away, and misrepresentation claims.
  • Represented investment firms in scores of customer arbitrations involving allegations of research analyst conflicts of interest.
  • Represented a major investment firm in significant cases involving stock options brought by former WorldCom employees.
  • Represented major investment firms in customer arbitrations involving a variety of securities, including high-yield bond funds, corporate bonds, and preferred stocks.

Commercial Litigation

Representations include:

  • Coordinating matter for national client in which Greenberg Traurig attorneys around the country provide advice about the impact of COVID-related developments on the client's business.
  • Prosecution of claims by government contractor for disaster recovery project monies owed arising out of Hurricane Ike.
  • Defense of record company in cases under Copyright Act, with multiple rulings upheld on appeal.
  • Assisted in appeal of city’s claim of governmental immunity in multimillion dollar contract litigation.
  • Defense of project management company in AAA arbitration against claims for breach of contract and fraud.

Pro Bono Matters

  • Representing Afghani clients seeking relief in the U.S. following U.S. withdrawal from Afghanistan.
  • Representing pro bono client in divorce proceeding.
  • Representing client seeking asylum following persecution in his home country based on sexual orientation.
  • Representing client seeking citizenship through marriage.
  • Obtained permanent residency for multiple pro bono child clients through Kids In Need of Defense.
  • Obtained T-Visa for pro bono client as victim of human trafficking.
  • Participating in Survivor's Project, assisting survivors of trafficking or domestic violence in obtaining clemency.

Recognition & Leadership

  • Team Member, a Law360 "Environmental Practice Group of the Year," 2022
  • Greenberg Traurig Pro Bono Shareholder of the Year (co-winner), 2020 
  • Listed, Super Lawyers magazine, Texas Super Lawyers, 2017-2018, and 2022-2023
  • Team Member, U.S. News - Best Lawyers®, Best Law Firms Edition, "Law Firm of the Year," Environmental Law, 2016
  • Co-Coordinator, GT Houston Pro Bono Program
  • Chairperson, Education Subcommittee, GT's Diversity and Justice Initiative
  • Pro Bono work with multiple organizations, representing clients in obtaining special immigrant juvenile status, asylum, and T-visas for victims of human trafficking
  • Council Member, HBA Securities Litigation and Arbitration Law Section
  • Member, Garland R. Walker American Inn of Court
  • Member, Southeastern Women in Financial Services
  • Founding Member, Kids in Need of Defense (KIND) Houston Advisory Committee
  • Advisory Board Member, Tahirih Justice Center
  • Nominating Committee Member and Fellow, Texas Bar Foundation
  • Member, American Bar Association, State Bars of Texas and Florida, Houston Bar Association


  • J.D., magna cum laude, Duke University School of Law, 2002
    • Editor-in-Chief, Duke's Alaska Law Review
    • Moot Court Board
    • Order of the Coif
  • Ph.D., Environmental Policy, The Ohio State University, 1997
  • M.S., Environmental Communications, The Ohio State University, 1994
  • B.S., Biology, Cornell University, 1992
  • Florida
  • Texas
  • U.S. Court of Appeals for the Fifth Circuit
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. District Court for the Eastern District of Texas
  • U.S. District Court for the Middle District of Florida
  • U.S. District Court for the Northern District of Texas
  • U.S. District Court for the Southern District of Florida
  • U.S. District Court for the Southern District of Texas
  • U.S. District Court for the Western District of Texas