Stewart Leech QC

"Measured, calm, incredibly diligent and a team player"

Chambers & Partners 2021

"He tells you how it is, and is a go-to person for cross-jurisdictional issues"

Chambers & Partners 2021

"Very clever, and a very calm but firm manner which disarms even the most entrenched of opponents (or indeed clients)"

Legal 500

Stewart Leech QC

"Measured, calm, incredibly diligent and a team player"

Chambers & Partners 2021

Call: 1992

Silk: 2011

Languages spoken: French (bilingual), German and basic Italian

Stewart is one of the country’s leading silks dealing in highly complex financial cases. His experience and expertise in jurisdictional issues are unparalleled. He is the ‘go to’ silk in any case with a French element.


Stewart specialises in ancillary relief, civil partnership and cohabitee disputes as well as Inheritance Act claims. His cases involve significant wealth and complex financial arrangements, often with an international dimension and/or involving tricky jurisdictional disputes. He is bilingual in French and English and has a particular interest in cross-channel cases. He is regularly instructed by corporate clients and trustees both to advise and to represent them in proceedings. He also routinely drafts pre- and post-nuptial agreements, again often involving multiple jurisdictions.


Stewart is consistently rated in Chambers & Partners, Legal Experts, and the Legal 500 in the top tier of leading silks at the family bar. 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 praised for “his expertly prepared addresses”, being described as “excellent”, a “fierce advocate” who “continues to amass a huge following among solicitors due to his superb judgment.” He is “an extremely hard-working, elegant and intelligent advocate” with “superb client care skills”; “he has a real ability to cut to the core of the issues and to present complex arguments in an accessible way.” 

Stewart is a very popular choice of tribunal for private judging for financial cases of all levels. He regularly conducts private FDRs and is a qualified arbitrator. He prides himself on being approachable and user-friendly. 

Stewart is a notable contributor to legal publications and a specialist contributing editor (family law) to Jowitt’s Dictionary of English Law (3rd edition). He is also speaks at lectures and seminars on a regular basis.

“He is super-available and responsive, and has an excellent way of cutting through the information and getting to the heart of the issues." "A measured advocate who gives sensible advice and instils confidence in his clients." "His advice is spot-on and delivered with a real gravitas that clients respond to.”
Chambers & Partners 2022
“excellent”, a “fierce advocate”
“continues to amass a huge following among solicitors due to his superb judgment.”
“an extremely hard-working, elegant and intelligent advocate”
“Measured, calm, incredibly diligent and a team player, he is an understated but extremely persuasive advocate who is technically extremely able.”
Chambers & Partners, 2021
“makes everything seem possible to the point where it almost seems like he can walk on water.”
Chambers & Partners
“Very clever, very calm, fantastic with clients and good with judges.”
Chambers & Partners
“…his numerical and analytical dexterity are unsurpassed.”
Chambers & Partners
  • Stewart read Modern Languages (French & German) at Christ Church, Oxford 
  • City University, London (Law)
  • 2009 appointed by the Attorney General as Junior Counsel to the Crown (A Panel), a post he held until taking silk. 
  • Member of the Family Law Bar Association and was a Committee member for many years
  • Fellow of the International Academy of Family Lawyers
  • Member of the Franco-British Lawyers Society
  • Member of the Chartered Institute of Arbitrators

Stewart is a seasoned and popular choice as a speaker. He has lectured extensively on family and human rights law, and on the law relating to same-sex partners. He was heavily involved in training the judiciary, the bar, solicitors, and the Lord Chancellor’s Department on the Human Rights Act when it first came into force. 

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