Stewart specialises in ancillary relief, civil partnership and cohabitee disputes as well as Inheritance Act claims. His cases generally involve significant wealth and complex financial arrangements, often with an international dimension and/or involving jurisdictional disputes. He is bilingual in French and English and has a particular interest in cross-channel cases. He is regularly instructed by trustees both to advise and to represent them in proceedings. He also routinely drafts pre- and post-nuptial agreements, again often involving multiple jurisdictions.
He is rated in Chambers & Partners, Legal Experts, and the Legal 500 as one of the leading practitioners at the family bar. He has also been selected by his peers as one of 2012’s Best Lawyers in the United Kingdom and figures as one of the country’s leading barristers in Citywealth Magazine’s Leaders List 2012 . Recent editions of Chambers & Partners quote solicitors as saying he is "very clever, very calm, fantastic with clients and good with judges". He is also described as “a late starter at the Bar after a successful teaching career with a maturity and confidence that allows him to bring a dash of theatricality into his expertly prepared addresses”, “excellent” and a "fierce advocate"; he “continues to amass a huge following among solicitors due to his superb judgment.” The latest edition says as follows: ‘he is "an extremely hard-working, elegant and intelligent advocate. Observers agree with his elevation to silk, noting that he has "conducted himself in a 'silky' way for years." His ancillary relief practice regularly involves cases in multiple jurisdictions relating to very high net worth individuals.’
He prides himself on being approachable and user-friendly.
Appointments and Membership In February 2009 Stewart was appointed by the Attorney General as Junior Counsel to the Crown (A Panel). He is a member of the Family Law Bar Association and was a Committee member for many years. He is a Fellow of the International Academy of Matrimonial Lawyers and a member of the Franco-British Lawyers Society.
Education Stewart read Modern Languages (French & German) at Christ Church, Oxford and taught for four years at Shrewsbury School and Eton College before qualifying as a lawyer.