Karl's fifteen years of real estate experience encompasses everything from apartment locating to international corporate relocation. His considerable experience in both the leasing and buying markets spans the greater Houston area, including Greatwood, Kingwood, Katy, Clear Lake, Friendswood, Sugar Land, New Territory, Missouri City, The Woodlands, Champions, Silverlake and Copperfield. In addition, he manages numerous rental properties under the name Holub Property Management.

Before entering the world of real estate, Karl was dedicated to a life of tennis. His love of playing tennis led him to teaching tennis both during and after college. He is a graduate of Texas A&M University with a degree in Speech/Management. As a former USPTA tennis teaching professional, Karl was ranked in the top ten of the Texas Men's Open Doubles division.

A resident of Houston for more than twenty years, Karl now resides in the Memorial area with his wife, Molly, and their three children, Chanse, Caroline and Charlie. Other members of the Holub household include Jack Russell terrier, Felonious, and his four tennis racquets, "The Wilsons." He occasionally gets to the golf course to bring his "C+" game.