William Hornsby served as staff counsel at the American Bar Association for 30 years. During that time, he led a variety of ABA entities dedicated to expanding legal services, including the Commission on Advertising and the Standing Committee on the Delivery of Legal Services. As staff counsel to the Commission on Advertising, William authored the book Marketing and Legal Ethics: The boundaries of promoting legal services. He was also involved in the development of policies and advancement of innovative models to create better access to legal services. In 2018, he left the ABA in order to open his practice and use his skill set to help clients explore their opportunities in ways that are consistent with the various ethics rules governing the practice of law.