She opened her first agency in 1981, changing the name to The Miller Agency in 1984. The Miller Agency became specialist cateringexclusively to the automotive industry when Dorthy moved the agency to Dallas, TX in 1987.
Since that time, Dorthy has helped literally thousandsof automobile dealerships develop strategicmarketing and advertising campaigns not only in the US, but Mexico, as well.
She has been a featured speaker at NADA for five of the past six years and has spoken to dealer associations around the country and Canada.