Elizabeth Dyer returns to Munger, Tolles & Olson as of counsel in Los Angeles. August 10, 2026 Munger, Tolles & Olson is pleased to announce that Elizabeth Dyer has rejoined the firm as of counsel in its Los Angeles office. Elizabeth brings extensive experience counseling employers on complex workplace and employment law matters, with significant in-house experience advising leading technology companies on a broad range of employment issues. Most recently, Elizabeth served as senior employment counsel at OpenAI, following her tenure as employment counsel at Block. In these roles, she advised business leaders on U.S. and global employment law matters, including employee relations, workplace investigations, compensation, mergers and acquisitions, workforce compliance and employment policies for rapidly growing organizations. She also developed strategies to help prevent and resolve workplace disputes and employment litigation. "Elizabeth combines sophisticated employment counseling with valuable in-house experience advising innovative companies through complex workplace issues," said Katherine Forster, co-chair of MTO's Labor & Employment practice group. "Her practical perspective and litigation background will further strengthen our ability to help employers solve their most difficult employment challenges in an ever-changing legal landscape." Prior to her time in-house, Elizabeth practiced labor and employment law at MTO, where she represented employers in single-plaintiff and class action employment matters and advised clients across industries on employee terminations, arbitration agreements, accommodation requests, inclusion initiatives and wage and hour compliance. "I am excited to return to Munger, Tolles & Olson, a firm known for its collaborative culture and commitment to excellence," said Elizabeth. "After several years in-house, I'm grateful for the opportunity to bring that perspective back to the firm and work alongside such talented colleagues once again." Earlier in her career, Elizabeth built a broad litigation and counseling practice at Am Law 100 firms in Los Angeles. She earned her J.D. from the University of Southern California and her B.A. from the University of California, San Diego. "Elizabeth's return reflects our continued dedication to providing clients with outstanding labor and employment counsel," said Co-Managing Partner Martin Estrada. "Her experience advising leading technology companies brings a valuable perspective on the workplace issues our clients face every day. We are delighted to welcome her back to the firm."

Former Munger Tolles co-managing partner Mark B. Helm joins FedArb. June 1, 2026 | Federal Arbitration Inc. Experienced arbitrator and nationally recognized trial lawyer brings deep expertise in complex business disputes, asset management, entertainment, trade secrets and corporate governance. June 2, 2026 - FedArb is pleased to announce that Mark B. Helm, Esq., has joined its panel as an arbitrator and mock panelist for dispositive motion and appellate arguments. Mr. Helm joins FedArb after serving as a full-time neutral in more than 75 matters, following a 37-year complex litigation practice at Munger, Tolles & Olson LLP. He is a member of the National Academy of Distinguished Neutrals. As an arbitrator, Mr. Helm has handled a broad range of disputes - from complex business matters involving acquisitions, stock purchase agreements, LLC agreements and investment vehicles, to consumer disputes involving cryptocurrency, automobile defects and financing practices. He also brings decades of litigation experience in asset management, entertainment and intellectual property, trade secrets, lawyers' liability and corporate governance matters. "Mark Helm brings insightful and sophisticated judgment that our clients need to help them resolve their complicated legal disputes," said Kennen D. Hagen, president and CEO of FedArb. "His experience as a full-time neutral, combined with decades at the highest levels of complex litigation, makes him an exceptional addition to the FedArb panel." Before becoming a full-time neutral, Mr. Helm was a nationally recognized trial lawyer and appellate advocate at Munger Tolles in Los Angeles. From 2005 to 2010, he served as the firm's co-managing partner, and was named one of Lawdragon's "100 Managing Partners You Need to Know." "I am delighted to join FedArb's panel of distinguished neutrals," said Mr. Helm. "FedArb is known for bringing serious legal talent to serious disputes, and I look forward to helping parties resolve complex matters with fairness, efficiency and careful attention to the legal and business issues at stake." Mr. Helm serves on the advisory board of the Institute for Transnational Arbitration and the board of directors of the Claremont Colleges. He clerked for Chief Justice Warren E. Burger of the United States Supreme Court and Judge Carl McGowan of the United States Court of Appeals for the District of Columbia Circuit. Mr. Helm graduated magna cum laude from Harvard Law School, and was president of the Harvard Law Review and received the Sears Prize. He graduated magna cum laude in government from Harvard College, where he received the Wendell Phillips Award for oratory. About FedArb FedArb is a global ADR firm providing comprehensive dispute resolution services to companies and law firms facing complex litigation. With a panel of more than 150 experienced professionals, including former law firm practice heads and more than 50 former Article III judges, FedArb helps litigators resolve disputes through arbitration, mediation, mock exercises and other ADR methods efficiently and cost-effectively. For nearly two decades, FedArb has been the trusted choice for resolving consequential disputes, offering responsive client service and a commitment to putting the client first.