Barkley Clark, a former Lawrence mayor, recently joined Stinson Morrison Hecker as a partner in the Financial Services Division of the Kansas City, Mo.-based law firm.

Clark joins the firm after 17 years at Shook, Hardy and Bacon, with a practice focused on banking and commercial law. Working in Washington, D.C., Clark often served as an expert witness on the Uniform Commercial Code.

Clark has served as a law professor for more than 20 years at schools including Kansas University, Georgetown Law Center, George Washington University National Law Center and the University of Virginia. He received his bachelor’s degree from Amherst College and his law degree from Harvard University.

He plans to spend several months working out of the firm’s office in Kansas City, Mo., then split time between the firm’s locations in Kansas City and Washington.