William specialises in divorce, financial relief (to include pre-nuptial and post-nuptial agreements) and private law children cases. He also has wide experience of cases with an international element. He was awarded International Family Lawyer of the Year by Jordans in 2014 and Family Lawyer of the Year by Spears Wealth in 2016. He was ranked in the top 10 London Family Law solicitors by Spears Wealth Magazine in 2015 and 2017. He is immediate past president of the International Academy of Family Lawyers and past president of the European Chapter of that organisation.