
Meet the Team
Development
Mark Jacob
Development Manager
Mark joined IDI in 2012 with 25 years of experience in commercial construction, development and real estate. In his management capacity, he is responsible for developing land estates and managing the entire construction process, as well as assisting with client development and proposals.
Prior to joining IDI, Mark’s career spanned various roles, including senior project manager and director of preconstruction for major developers and general contractors in the Cincinnati-area, including Paul Hemmer Companies and Messer Construction. Mark is also a member of Allied Construction Industries (ACI), and holds a Kentucky real estate license.
In his spare time, Mark enjoys spending time with his wife, Molly, and their three children, Abby, Madeline and Andrew. He also plays golf and coaches soccer.
Doug Armbruster
Senior Vice President, Regional Managing Director
As Senior Vice President and Regional Managing Director of IDI’s Cincinnati market office, Doug is directly responsible for leading development activities, land and building acquisitions, leasing and sales as well as overseeing construction and property management in the Ohio, Kentucky and Indiana areas.
Doug joined IDI in 1995 as Development Manager and was promoted to Vice President of Leasing in 1999, where he was responsible for real estate leasing, built-to-suit lease sales and client relations for industrial development projects. From 1995 through 2012, Doug has been involved with leasing and development of more than 12 million square feet of space valued at more than $300 million.
Ben Chrin
Vice President, Construction
Helen Patrick
Executive Assistant
Property Management
Carla Mize
Vice President of Real Estate Management
Carla is responsible for overseeing the management of the Cincinnati development office’s 5.4 million-square-foot industrial portfolio. Equipped with 17 years of experience, Carla’s expertise is in institutional quality management, construction management and real estate tax. Carla is also active in the leadership of the IREM Greater Cincinnati & Dayton Chapter, for which she served as the 2008 Chapter President, named the Chapter’s 2009 CPM of the year and presented the Dedication to the IREM Award in 2010. Prior to joining IDI in 2001, Carla was a commercial property manager for NAI Eagle Realty Group, a division of Western and Southern Life Insurance, where she managed third-party office and retail properties, and was responsible for the management of local commercial owners associations. Carla also accumulated a great deal of experience in all types of commercial properties through positions at Midwest Centers, CORE Resources, Midland (now Regency) Centers and KPMG Peat Marwick.
Nancy McKibben
Real Estate Administrator



