Kemper Diehl
Seattle Office Phone: (206) 373-7382 Email Download vCard Print Bio to PDF

Dartmouth College, A.B., 2006

Columbia Law School, J.D., 2013

Judicial Clerkship

Law Clerk to Judge William H. Walls, U.S. District Court, District of New Jersey

Kemper Diehl

Kemper Diehl is a shrewd advocate dedicated to his clients’ success. He brings significant experience to bear from litigating all types of high-stakes commercial disputes, including breach-of-contract, patent, trade secret, securities fraud, and environmental tort suits. Kemper’s incisive writing and powerful oral argument skills have won key motions, cases, and appeals in federal courts, state courts, and private arbitration proceedings.

Kemper joined Susman Godfrey in Seattle after three years as a litigation associate at Covington & Burling in New York.  He clerked for Judge William H. Walls on the U.S. District Court for the District of New Jersey. Before attending Columbia Law School, Kemper worked at Bain & Company as a management consultant and at the global private equity firm Thomas H. Lee Partners as an investment associate.

Kemper earned his undergraduate degree from Dartmouth College, where he was captain of the men’s swimming and water polo teams.

Notable Representations
  • Represent private investor in shareholder fraud suit against public company NextGen Healthcare, after successfully winning appeal of an adverse ruling. Click here to read the appeal decision.
  • Represent major technology company in private arbitration defending against claims of alleged trade secret misappropriation and breach of contract.
  • Represent inventor of software technology in patent lawsuits against major smartphone companies, including Apple and Google.
  • Represented executives of successful social media start-up in breach of contract suit for executive compensation following company’s sale.
  • Obtained complete dismissal for investment bank Cantor Fitzgerald of securities fraud claims brought by class of shareholders. Read the court’s opinion here.
Honors and Distinctions
  • James Kent Scholar at Columbia Law School (~Top 10% of Class)
  • Columbia Human Rights Law Review Member and Articles Editor for the Jailhouse Lawyer’s Manual
  • Clarkson S. Fisher Historical Society Essay Award recipient
  • Advocacy as law student for Bronx resident featured in The New York Times
  • Captain, Dartmouth Swimming (NCAA Division I) and former school record holder
  • William Jewett Tucker Foundation Fellow, Dartmouth College