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Tammy McMillan is a litigation partner characters) in the Dallas office of OConnor and McMillan, LLP. For nearly thirty years, Tammy has represented corporations and and business government has tried individuals indisputes. She investigations lawsuits in federal and state court, and before arbitrators. With extensive experience in conducting internal corporate investigations, Tammy has also represented clients in connection with investigations by the Department of Justice, the SEC, and other governmental authorities. Her practice is concentrated in the areas of antitrust, fraud, and complex business disputes. Tammy is a frequent speaker and author for national audiences on topics related to antitrust law, investigations, and litigation issues and techniques. Among other audiences, she has spoken to the ABA Antitrust Section Spring Meeting, the ABA National Institute on White Collar Crime, and the Center for American and International Law's Annual Course on Antitrust Law, and she serves on the Advisory Board for the BNA White Collar Crime Report. She has also served as an adjunct instructor of Trial Advocacy at the Baylor University School of Law, and as a coach of Baylor University School of Laws national trial competition teams. Tammy is an active member of the American Bar Association, participating in the Antitrust Section and the Section of Litigation. She currently serves as the Vice-Chair of the Compliance and Ethics Committee of the ABA Antitrust Section, and has previously served as Vice-Chair of the Cartel and Criminal Practice Committee. She serves on the Board of Trustees for Dallas Christian School.

Admitted to practice in:
Texas Supreme Court
U.S. District Court for the Northern District of Texas