Callahan graduated from Texas Tech University with a Master’s degree in accounting. After obtaining his CPA, he worked for KPMG in the audit practice where he gained exposure to many different industries including Real Estate. As a Project sales Manager, he brings an organized and disciplined approach to Concierge Auctions unique process. ​ Real Estate Licenses: Colorado: FA.100091817, Concierge Auctions LLC,;Texas: 749838, Concierge International Real Estate, Inc.