Mark Osbeck, 86, is a clin­i­cal pro­fes­sor of law at the Uni­ver­si­ty of Michi­gan and teach­es in the Law School’s Legal Prac­tice Pro­gram. He also is a lead­ing author­i­ty on mar­i­jua­na law, hav­ing authored two sig­nif­i­cant books on the sub­ject: Cas­es and Mate­ri­als on Mar­i­jua­na Law (West, 2019) and Mar­i­jua­na Law in a Nut­shell (West, 2017).

Osbeck also is the author of a widely used legal research text: Impeccable Research: A Concise Guide to Mastering Legal Research Skills, 3rd ed. (West, 2022). In addition to marijuana law, his research interests include legal writing, legal research, judicial decision-making, and predictive legal analysis.

Before joining Michigan Law in 2001, Osbeck was a partner in the Denver office of a large law firm. He litigated sophisticated commercial cases for a number of years, first in Washington, DC, and later in Denver, and he has extensive trial and appellate experience before a number of state and federal courts, including the US Court of Appeals for the 10th Circuit.

While attending Johns Hopkins, he received a University Fellowship, the top departmental award. In law school, he received certificates of merit for legal writing and political philosophy.