Ann M. Lousin, J.D. is Professor of Law at The John Marshall Law School.
Before law school, Lousin studied political science at the University of Heidelberg in Germany. After graduating from law school in 1968, she was a research assistant at the Sixth Illinois Constitutional Convention, where she worked on the drafting of the 1970 Illinois constitution. From 1971 to 1975, she was on the staff of the Speaker of the Illinois House of Representatives, including two years as Parliamentarian of the House.
Lousin has served on several not-for-profit boards and governmental commissions, including a term as Chairman of the Illinois State Civil Service Commission. She is active in the commercial law committees of the American and Chicago Bar Associations, and has been the chair of the CBA Constitutional Law Committee. In 2009, she was elected a member of the American Law Institute.