Gregory F. Hahn



Gregory F. Hahn is a principal of Bose Public Affairs Group and a partner in the Bose McKinney & Evans law firm. Hahn concentrates his practice in all areas of corporate law and business litigation as well as insurance law, real estate law, gaming and state and federal lobbying.


Hahn earned his law degree from the Indiana University Robert H. McKinney School of Law – Indianapolis and a bachelor’s degree in history from University of Evansville.

Honors / Awards

The Best Lawyers in America® 2013-2014; Sagamore of the Wabash from Governor Evan Bayh; Indiana Super Lawyers® 2006-2014; Who’s Who, Litigation Counsel of America

Appointments / Memberships

Throughout his career, Hahn has represented clients such as Carl Icahn, Tropicana Resorts, Trump Entertainment Resorts, Inc.; Bally Gaming; GTech Corporation; Boyd Gaming Corporation; Station Casinos; United Gaming; Horseshoe Casinos; the City of Indianapolis; the Indiana Insurance Guaranty Association; the Indianapolis-Marion County Public Library; College Network, Inc.; Clarian Hospital; and the Indiana Department of Insurance, among many others. Hahn was appointed by the Mayor of Indianapolis to the Indiana Sports Corporation in 2000 and to the Indianapolis Private Industry Council in 2001. In 2016, Hahn was appointed to the Indiana Charter School Board.

In addition to these appointments, Hahn has also served in a number of political positions including Counsel and Treasurer for the Marion County Democratic Central Committee and in the same capacity for the Indiana State Democratic Committee. He still serves as general counsel for the Marion County Democrat Central Committee.

Hahn is a member of several professional organizations including Governmental Affairs Society of Indiana; Indiana Bar Association; Indiana Society of Association Executives; Indiana Trial Lawyers Association; Indianapolis Bar Association; International Masters of Gaming Law; Litigation Counsel of America; and the Seventh Circuit Bar Association.

Outside the Office

Hahn is also involved in the community. He currently serves as treasurer of the board of directors of the Indianapolis Public Transportation Corporation; Athenaeum Foundation; Central Indiana Community Foundation; Indianapolis Foundation; Rock Steady Boxing; Starfish Initiative; Catholic Community Foundation, Inc. (Board of Trustees) and The William E. English Foundation. Hahn has received numerous honors and recognitions including being awarded the Sagamore of the Wabash from Governor Evan Bayh and has been named as an Indiana Super Lawyer and among the Who’s Who in American Politics.