President & Auctioneer. Heather Kohler oversees daily operations at Gateway; as well as actively seeking consignments, coordinating sales and staff development. Heather is a licensed auctioneer in the state of Pennsylvania. A 2008 graduate of Mendenhall School of Auctioneering, she has been working for the company since 1998. Heather is a member of the National Auctioneer’s Association, Pennsylvania Auctioneers Association and the Ladies Auxiliary VFW.