William represents a wide variety of private investors and businesses, including family-owned, start-up, and multimillion-dollar enterprises on purely domestic as well as inbound and outbound business transactions, cross-border investments (whether made directly or through investment funds or joint ventures), and qualification for US tax treaty benefits. An important part of Bill's practice includes the formation, management, and periodic evaluation of multi-national and/or multi-generational centralized control and management structures, such as family offices.
Bill has published articles in numerous publications and has been quoted in leading journals and periodicals.