Lewis was born in Amarillo and raised on the family farm on Whitaker Road. He graduated from Amarillo High School and West Texas State University. He received a Bachelor of Science Degree in Agriculture.
Lewis married Cindy Jones in 1970, and they have two children, Lee & Lanny.
In 1974, Lewis began selling real estate and quickly earned his Real Estate Broker designation and began to focus on selling farm, ranch and recreational property. In 1997, he opened Whitaker Real Estate. Lewis also has a dryland farming and ranching operation in Armstrong County, raising wheat, milo, and Angus cattle.