Practice Areas
Holly Drumheller Butler is deeply experienced in counseling clients in government and internal investigations, corporate compliance, and complex commercial litigation.
Holly conducts investigations in a broad array of sectors—including healthcare, financial services, environmental, and government contracting—and has represented companies in investigations by the Department of Justice, Office of Inspector General, regulators, and enforcement officials. Her experience includes serving as counsel to former Secretary of Defense William S. Cohen in connection with his independent review of the U.S. Environmental Protection Agency’s regulatory processes surrounding potential mining development in Bristol Bay, Alaska. She has represented companies in voluntary disclosures to regulators and enforcement officials, as well as conducted numerous internal investigations on behalf of corporations, corporate boards of directors, and audit committees.
Her litigation experience includes “bet the company” class action matters, complex commercial disputes, fraud claims and appellate litigation. She has tried cases in various federal and state courts, as well as in arbitration proceedings. She also has successfully opposed motions for class certification in numerous jurisdictions.