After 5 years as an Assistant State Attorney in Dade County Florida, Mark entered private practice where he represented a number of fragrance distribution companies. In 1986 he co-founded Northern Group, a distributor of fine fragrance that grew to $120,000,000 in annual sales. In 2002 he purchased Demeter Fragrance Library with his partner, Debra Janke, and together they have grown that business to a worldwide niche fragrance brand.