Jack Collins serves as an associate vice president on Northmarq’s Chicago retail investment sales team. Jack specializes in the disposition and acquisition of single tenant retail properties for a wide range of real estate institutions, developers, private equity groups, operators and private investors. Jack's dedication to maximize value through his straightforward and detail-oriented approach is what makes him a tremendous asset to his clients. Recognized for his honesty and execution, Jack can always be looked to as a dependable resource no matter the size or complexity of the transaction. Prior to Northmarq, Jack served as an associate at Matthews Real Estate Investment Services, Inc

BJ Feller is a Senior Vice President and Managing Director of Northmarq’s Chicago office, leading a team of professionals specializing in the disposition and acquisition of net lease retail, office and industrial properties nationally. Feller represents a broad range of institutional, private, and international clients, and has completed transactions in excess of $4.5 billion across 39 states, consistently providing strong results for clients. Before joining Northmarq, Feller served as Managing Director and Partner and a founding member of Stan Johnson Company’s Chicago office. Prior to Stan Johnson Company, Feller served as development manager for the Chicago-based development firm IBT G

Christian Tremblay is a vice president located in Northmarq’s Chicago office. Christian specializes in the disposition and acquisition of single-tenant net lease retail, cannabis and industrial properties throughout the United States. Christian has closed more than $500 million in total transaction volume. Before Northmarq, Christian served as a director in Stan Johnson Company’s Chicago office. Prior to Stan Johnson Company, Christian was a vice president with Mid-America Real Estate Corporation’s Net Lease Investment Sales Group. In this role, he was responsible for creating offering memorandums, business development, in depth investment analysis and assisting clients on both the buy a

Isaiah Harf is the Regional and Managing Director for Northmarq’s Chicago office and has been with the firm since October 2011. Focusing on the sale of net leased assets, Harf has closed more than $3 Billion in total transaction volume and has partnered with some of the nation’s most respected and trusted institutions, private equity managers and merchant developers. As one of the lead business development and execution specialists for the team, Harf provides extensive knowledge to buyers and sellers of all profiles nationwide. Throughout the transactional process, Harf manages clients’ interests by providing guidance and facilitating the implementation of unique solutions to assure unparall