“He’s just extremely clever and able to grasp very complicated issues and present them in a very effective way in court.” “He’s particularly skilled in explaining complex areas of the law in a way that clients find digestible.”
“An assured advocate who argues his client’s case with incredible preparation and care.”
Justin specialises in complex high-value cases, difficult jurisdictional issues, cases with Human Rights angles, difficult factual disputes and coercive control.
He appears regularly in the leading family cases and is well-known for his advocacy before the High Court and the Court of Appeal. He is most often seen in high profile divorces acting either for (or for the spouses of) captains of industry, disrupters, oligarchs, film stars, producers, heiresses and football club owners.
He is frequently instructed in international work advising in cases in Jersey, Gibraltar, Singapore, Canada, the Cayman Islands and Hong Kong.
He is frequently appointed as private FDR judge in complex high net worth cases.
He was appointed Deputy High Court Judge in February 2024.
“He’s just extremely clever and able to grasp very complicated issues and present them in a very effective way in court.” “He’s particularly skilled in explaining complex areas of the law in a way that clients find digestible.”
“An assured advocate who argues his client’s case with incredible preparation and care.”
Justin specialises in complex high-value cases, difficult jurisdictional issues, cases with Human Rights angles, difficult factual disputes and coercive control.
He appears regularly in the leading family cases and is well-known for his advocacy before the High Court and the Court of Appeal. He is most often seen in high profile divorces acting either for (or for the spouses of) captains of industry, disrupters, oligarchs, film stars, producers, heiresses and football club owners.
He is frequently instructed in international work advising in cases in Jersey, Gibraltar, Singapore, Canada, the Cayman Islands and Hong Kong.
He is frequently appointed as private FDR judge in complex high net worth cases.
He was appointed Deputy High Court Judge in February 2024.
All matters concerning divorce and the breakdown of family relationships.
FLBA
Deputy High Court Judge – February 2024
Christ Church, Oxford
Chambers UK Bar 2025
“He’s just extremely clever and able to grasp very complicated issues and present them in a very effective way in court.”
“He’s particularly skilled in explaining complex areas of the law in a way that clients find digestible.”
“A lawyer of great skill, who has charm and a sense of humour.”
“They feel he is going to fight their corner.”
“He uses his considerable charm and wit to bring the clients and the judges along with him.”
“Justin’s intellectual and humane approach to cases is very effective.”
Legal 500 UK Bar 2025
“An assured advocate who argues his client’s case with incredible preparation and care.”
Previous Directory Quotes:
Chambers UK Bar 2024
“Justin Warshaw KC mainly handles international work and regularly appears before the High Court and the Court of Appeal, representing an impressive clientele of high-profile individuals. Warshaw is frequently instructed in cases involving offshore jurisdictions including Hong Kong, Gibraltar and Jersey.”
“Justin is very adept at shifting positions to make sure his argument is finding favour with the court. He gets straight to the point and is very quick at seeing the issues in very complex cases involving novel areas of law.”
“Justin is able to deliver the most challenging of cases with an unutterably smooth style.”
“Justin is intimidatingly intelligent and a phenomenal advocate. He has laser-sharp judgement and is wonderfully calm when dealing with both clients and those instructing him.”
Chambers UK Bar 2023
“Justin Warshaw KC mainly handles international work and regularly appears before the High Court and the Court of Appeal, representing an impressive clientele of high-profile individuals. Warshaw is frequently instructed in cases involving offshore jurisdictions including Hong Kong, Gibraltar and Jersey.”
“Justin Warshaw is an extremely effective performer whose cross-examination is especially strong.”
“Justin is a strategic mastermind. He is a pleasure to instruct and a master of his craft. Clients love him.”
Chambers UK Bar 2022
“Mainly handles international work and regularly appears before the High Court and the Court of Appeal, representing an impressive clientele of high-profile individuals. Warshaw is frequently instructed in cases involving offshore jurisdictions including Hong Kong, Gibraltar and Jersey.”
“He’s a good details person and brings this cerebral, intellectual approach to his advocacy.” “He’s good at putting clients at ease and making them understand key issues.“ ”Whatever the situation, he pushes until he has a thorough understanding of it.”
Chambers UK Bar 2021
“Mainly handles international work and regularly appears before the High Court and the Court of Appeal, representing an impressive clientele of high-profile individuals. Warshaw is frequently instructed in cases involving offshore jurisdictions including Hong Kong, Gibraltar and Jersey.”
“A highly impressive advocate who knows his cases inside out, he is superb on technical issues.” “Extremely knowledgeable and highly respected in the industry, he is hard-working, grounded and invaluably helpful.” “Justin navigates through complex material at a rapid rate and is always on top of things.”
Legal 500 UK Bar
“Cares very deeply about doing his best for his clients.”
“His advocacy style is among the best at the family Bar.”
“Very worthy of his reputation.”
“A great tactician with huge compassion and patience.”
“An excellent and persuasive advocate”
“Very effective”
“Creative”
“A silk who combines strong forensic skills with the ability to argue any point from any angle. He has the ear of the judge.”
Justin is married to a professional singer. They have two daughters. He enjoys photography and sometimes writes reviews for the TLS.
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