Mike Von Klemperer

Michael von Klemperer is a shareholder in Baron & Budd’s Opioid Litigation Group in Washington, D.C. Since joining the firm in 2020, Mr. von Klemperer’s practice has focused on representing state attorneys general in litigation across the country. He currently represents nine states in their cases against opioids manufacturers, distributors and dispensers, and has taken a significant role at both the trial and appellate levels.

Prior to joining Baron & Budd, Mr. von Klemperer worked for a boutique firm litigating a wide range of complex matters, including antitrust, intellectual property, False Claims Act, and employment discrimination cases. Following law school, he clerked for District Judge Barbara Rothstein of the U.S. District Court for the District of Columbia.

Mr. von Klemperer attended Vanderbilt University Law School where he was a member of the Moot Court Board and participated in Vanderbilt’s Advanced Trial Advocacy program. During law school, he also interned for the Department of Justice and several U.S. Attorneys’ Offices. He received his undergraduate degree from Tulane University, graduating with honors.

Mr. von Klemperer resides in Washington, D.C. In his spare time, he enjoys travel, backpacking, and spending time with family.


Vanderbilt University Law School (J.D., 2012)

Tulane University (B.A., cum laude, 2007)

Bar and Court Admissions

District of Columbia

United States Court of Appeals for the Federal Circuit

United States District Court for the District of Columbia

United States District Court for the Eastern District of Wisconsin

Professional Associations

American Bar Association

Federal Bar Association


Super Lawyers Rising Star (2017-2020)