David B. Guenther, '99, is a clinical assistant professor of law and director of the International Transactions Clinic. He represents social enterprises in international financing and other international transactions.

Prior to joining the Law School, Professor Guenther was a partner at Conlin, McKenney & Philbrick, P.C. in Ann Arbor, where his practice focused primarily on U.S. and international transactions, financing, corporate governance, and succession planning for privately held companies. He is experienced in public and private company mergers and acquisitions, securities offerings, venture capital, angel and impact investing, and other transactions for established, emerging, and start-up business and nonprofit clients. Professor Guenther taught as an adjunct clinical assistant professor in the International Transactions Clinic from 2010 to 2015.

He studied classical philology at Julius-Maximilians-Universität Würzburg from 1995 to 1996. Following law school, he was an associate with Sullivan & Cromwell LLP in New York (1999–2001) and Frankfurt, Germany (2001–2004).

Professor Guenther served as an intern in the legal department of the former German Federal Securities Supervisory Office, now part of the German Ministry of Finance, in Frankfurt during fall semester 1998. He also taught English at a rural secondary school in Kenya, East Africa, from 1986 to 1987.

Professor Guenther is a past chair of the International Law Section of the State Bar of Michigan. He is a member of the board of directors of the Library of the Great Lakes, a former member of the boards of directors of Dixboro Village Green, Inc. and Michigan Nonprofit Housing Corporation, and former chair (2008-2021) of the Superior Township Planning Commission. He is a member of the Michigan and New York state bars.