Mark Warner's Bio Mark Warner is the founder and CEO of RealEspace® LLC, a company developing revolutionary real estate technology products. Its flagship product is RateWindowTM, a consumer-facing, transparent mortgage widget.  He has 30 years experience as a tactical financier, property developer, entrepreneur, and real estate professional. He has successfully founded, funded and operated several real estate partnerships. In 1994, Mark founded a financial services firm which provided real estate, mortgage, insurance, and financial consulting services to its clients.