Mike Sullivan, Harris County Tax Assessor-Collector A native Houstonian, with a long history of community involvement, Mike Sullivan was sworn in as Harris County Tax Assessor-Collector on January 1, 2013. Sullivan will serve a four-year term that will focus on improving customer service, embracing technology, and advocating for the taxpayer. Mike Sullivan was appointed by the Texas Water Development Board to serve on the Executive Committee of the Region H Water Planning Group from 1997 – 2005. He served from 2004 – 2007 on the Humble ISD Board of Trustees. Sullivan served on the Houston City Council from 2008 to 2013. Serving District E, he represented the communities of Kingwood and Clear Lake, as well as the Houston Ship Channel, Ellington Airport, and NASA/Johnson Space Center. Sullivan presently serves as a board member of Hospital Corporation of America-Gulf Coast Division and Camp Allen. As well, he serves on the Lone Star College System Chancellor’s Advisory Council and is a member of the Kingwood Musical Arts Society Advisory Board. He is also a member of several area chambers of commerce