Mark Ernster
Vice President

Mark focuses on tenant and landlord representation throughout Colorado, as well as building sales on behalf of buyers, sellers, and land development, including pad site transactions.

Mark began his brokerage career with SullivanHayes Brokerage in 2014. Prior to joining SullivanHayes, Mark worked on the retail team at NAI Highland in Colorado Springs. Mark earned his BS in Economics at the University of Colorado Boulder in 2010. Outside of work, Mark enjoys hiking, fishing, skiing, cooking, and spending time with family. Mark lives in Greenwood Village, CO with his wife, two children and two Chesapeake Bay Retrievers.


University of Colorado Boulder – Bachelor of Science in Economics, 2010


2014 – Present: SullivanHayes Brokerage
2011 – 2014: NAI Highland Commercial Group