Zack began his career in Real Estate as an appraiser in 2003. He founded Authority Appraisals in 2006 which is a leading provider of Real Estate Appraisals in the St. Louis / St. Charles markets and surrounding areas. He expanded his services to Real Estate Sales in 2008 and later founded Rhodes & Associates Realty in 2010. Zack is a member of the National, Missouri and St. Charles Association of Realtors, is a practicing affiliate of the Appraisal Institute, has served as a director on the Greater St. Louis Chapter of the Appraisal Institute, and has served as President for the Greater St. Louis Chapter of the National Association of Professional Mortgage Woman.