Marian practises arts, entertainment and copyright law. She received an honours B.A. from the University of Toronto, a M.Sc.(Econ.) from the London School of Economics and, in 1976, her LL.B. from the University of Toronto. Prior to practising law she worked for ten years as a book and magazine editor. Marian has advised authors and artists for almost four decades and has written self-help guides, which include, "Help Yourself to a Better Contract" and "Ghost Writing". Marian also represents the Writers' Union of Canada and other professional creator organizations. She is a founder and past chair of Artists' Legal Advice Services, a governor of the Canadian Copyright Institute and a member of the Copyright Technical Committee of the Intellectual Property Institute of Canada.
Warren is engaged in an intellectual property and business law practice. He regularly advises authors and performers as well as professional organizations that represent them, and provides corporate counsel to small and mid-sized companies. In addition to his LL.B., he holds a B.A. in Economics, a M.A. in History and a Professional Specialization Certificate in International Intellectual Property Law. Warren began his legal career at the law firm Fasken Martineau LLP (1999-2004) and has since been in private practice with Marian Hebb for fifteen years. He served for several years as duty counsel at Artists' Legal Advice Services (ALAS), and chaired its related not-for-profit corporation, Artists and Lawyers for the Advancement of Creativity (ALAC) from 2013 to 2016. On a number of occasions Warren has appeared as a witness before Parliamentary and Senate Committees studying copyright reform in Canada, and he has frequently presented on copyright matters to author and other industry organizations. Warren has acted as co-counsel for author and publisher associations in interventions at the Federal Court of Appeal and the Supreme Court of Canada. Warren served as the founding chair of the Queen West Art Crawl corporation, and as a founding director of the West End Phoenix.