Since 1974, Dennis has been actively involved in the commercial real estate business working as an appraiser, property manager, broker and consultant. With this eclectic background, Dennis serves both occupier and investor clients leading them through complex leasing and sales transactions.As an Executive Vice President with Colliers St. Louis, his experienced, results-driven approach has made him a trusted leader and advisor for clients and colleagues. Concentrating his efforts on the local office market, Dennis has advised clients through some of the largest transactions in the St. Louis region. He’s received several accolades throughout his career and continues to be an industry leader due to his energy, creativity and market insight.Prior to joining Colliers, Dennis was Senior Director and Principal at Gateway Commercial, an affiliate of Cushman & Wakefield in St. Louis. During his time at Gateway, Dennis worked with a number of large, investor and occupier clients such as Ernst & Young, Pfizer, Jacobs Engineering, BJC Health System, RREEF, TIAA, FedEx, Centene, GMAC, Citicorp Real Estate Inc., and THF Realty. He’s worked on investment sales, disposition and leasing and tenant representation assignments ranging in size and complexity.In addition to his industry involvement, Dennis contributes his time and talents to various community organizations. He’s a past board member of the White House Retreat, Chesterfield Arts Board, Missouri Growth Association and currently serves on the Real Estate Finance Committee of the Archdiocese of St. Louis.