Graham Iversen has been a tax lawyer for around 30 years. He was a tax lawyer at Slaughter and May for around 22 years, including around 15 years as a partner, has been a partner in Greenberg Traurig London for around nine years, served as head of the firm’s London tax practice for most of that period and has served as co-head of the firm’s global tax practice. Email: graham.iversen@gtlaw.com.