Ambra Walker is a performance-driven marketing professional from Lakeland, Florida with 15 years of marketing experience, a decade of which she spent in the auction industry. She is a proud graduate of Florida Southern College and has an extensive background in evaluating clientsâ business and marketing situations, executing custom marketing campaigns, and leveraging a variety of digital marketing tools.
Jean Boen Roberts is an entrepreneur with a proven track record of amplifying outcomes through creative messaging and operations. As the Chief of Staff for Mast Auctioneers, Roberts coordinates logistics, staffing, team relations, and marketing for the auction teams at some of the world’s most well-known auctions: Barrett-Jackson, Fasig-Tipton, Standardbred Horse Sales and more. Charged with realizing the vision of internationally known Auctioneer, Joseph Mast for his portfolio of ventures, Roberts has exposure to t...
A recognized leader at the intersection of auctioneering and innovation, John Schultz has dedicated over 25 years to advancing the profession. He serves as Partner and Chief Marketing & Technology Officer at Grafe Auction, a nationwide leader in commercial and industrial equipment auctions. He previously served as the 76th President of the National Auction Association (2024–2025) and as Chairman of the Board (2025–2026). John’s journey began in 1992 at his grandfather’s estate auction—a formative momen...
Sara Rose Bytnar is a third-generation auctioneer and licensed real estate broker with Beth Rose Real Estate and Auctions, where she leads company operations across residential, land, commercial, foreclosure, and golf course property sales. She holds a Bachelor of Arts in Communication with a concentration in Advertising and Promotion from Bowling Green State University. Sara is a nationally recognized leader in the auction industry, serving as the 2017 Women’s Division Champion of the National Auctioneers Associa...