April 18, 2013 – Koltin Consulting Group, a provider of management, marketing, and business consulting services to financial services firms, has placed Nichole Williamson as general manager of the John Hancock Observatory in Chicago. Managing director Nelson Rodriguez and director Mitchell Bassler completed the search. Ms. Williamson was previously the hotel manager at the Doubletree by Hilton Chicago Magnificent Mile. The John Hancock Observatory, owned and operated by Paris-based Montparnasse 56, is one of Chicago’s most visited tourist attractions. Koltin Consulting Group’s executive search practice conducts executive searches nationally for companies within a variety of industries including professional and financial services, consumer products, and private equity.