As a dual qualified lawyer in France and New York, Guilain is highly regarded for his in-depth knowledge of complex multi-jurisdictional work. Practicing in a broad range of sectors involving real estate, leisure, medical and retail, Guilain believes that both client trust and commercial thinking are key to successful transactions. Guilain is regularly praised by clients for his strategic vision, as well as his steely determination to get the deal done successfully and often ahead of schedule.

Guilain is a graduate of leading French business school HEC, where he majored in Legal and Tax studies, and of the University of Paris I Sorbonne where he obtained a Postgraduate Degree (DESS) in Business Law and International Taxation in 2003. Guilain obtained a LL.M. from Stanford Law School in 2009.