Board of Directors

Board of Directors - Hartman vREIT XXI, Inc.

Allen Hartman Portrait

Al Hartman

Executive Chairman of the Board

Al Hartman (Allen R. Hartman) is our Executive Chairman of the board of directors and founder of the parent company of our Advisor, Hartman Advisors LLC, and our property manager, HIR Management. 

In 1984, Mr. Hartman formed Hartman Management and began sponsoring private real estate investment programs. Over the next 24 years, Mr. Hartman built Hartman Management into one of the leading commercial property management firms in the state of Texas and sponsored 20 privately offered programs and one publicly offered program that invested in commercial real estate in Houston, San Antonio and Dallas, Texas. 

Read the full biography of Al Hartman.

John G. Ostroot


John G. Ostroot has served as one of our independent directors since February 2016. Since January, 2008 Mr. Ostroot has served as a director of Hartman Income REIT, Inc. and since July, 2009 Mr. Ostroot has served as an independent director of Hartman Short Term Income Properties XIX, Inc. He was president of EGC Corporation and 3P USA Inc., subsidiaries of Plastic Omnium, Inc., a French-owned global leader in the processing of fluoropolymers and other high-performance resins plastics, from September 1994 until he retired in January 2000. As president of these companies, he actively supervised the principal accounting officers and was responsible for overseeing and assessing the performance of companies and public accountants in the preparation, audit and evaluation of financial statements on behalf of the company. 

After his retirement at 3P USA, Mr. Ostroot assumed a leadership role with the Fluoropolymers Division of the Society of Plastics Industries, a trade organization, consisting of processors and suppliers of fluoropolymer resin, headquartered in Washington, D.C. Presently, Mr. Ostroot is serving on the Fluoropolymers Division Executive Committee as Past Chairman. 

In April 2005, Mr. Ostroot received the Whitney Bro Lifetime Achievement Award from the DuPont Company for his more than 45 years in the Fluoropolymer industry. Mr. Ostroot holds a Bachelor’s degree in Chemical Engineering from the University of Minnesota.