Joyce's professional leadership spans key national and international professional and civic associations. She currently sits on the Advisory Council of the National Restaurant Association‘s Supply Chain Group and is on the Board of the College of Merchandising, Hospitality and Tourism for the University of North Texas. She served as a member of the boards of the International Franchise Association and its Educational Foundation; the National Restaurant Association Educational Foundation and the Susan G. Komen for the Cure Advocacy Alliance. She serves as Chair Emeritus for the Women Corporate Directors' DFW Chapter, of which she is a founding member.

A frequent national speaker and writer, Joyce was an editorial advisor to the book Franchising for Dummies. She is the recipient of several leadership awards from the International Franchise Association, the Women’s Foodservice Forum and the Dallas Business Journal. Joyce has been nationally ranked in Band 1 by Chambers USA for Franchise Law; listed for more than 20 years by The Best Lawyers in America; and has become a "Legal Eagle" mainstay in the annual listing by Franchise Times, which inducted Joyce into its inaugural 2013 Legal Eagles Hall of Fame.