20 Years in the Real Estate Industry, starting with Coldwell Banker in 2002, Kostas opened his own Real Estate Brokerage 3 Sixty Properties in 2007 with 4 agents under his team and transitioned to @properties to team up with the Connie Dornan Group (the top brokers in Sales Volume over the past 5 years). Kostas grew up in Arlington Heights and graduated from Arizona State University with a Degree in Marketing.