1 Hare Court

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.

Specialist in

All matters concerning divorce and the breakdown of family relationships.

Types of Cases as pFDR Judge:

Case involving a matrimonial estate worth in excess of £100m with complex arguments about valuation and the impact of a pre-nuptial agreement

Cases relating to the division of a matrimonial estate and the extent pre and post marital acquest detracts from an equal split

Matters relating to how to treat complex hedge fund interests

Notable Cases as Counsel:

KV v KV [2024] EWFC 165 – Wife's application for maintenance pending suit and a legal services payment order.

YC v ZC [2022] EWFC 137 (B) - Financial remedies proceedings

XO and YO and AA limited [2022] EWFC 114 - Division of assets in international divorce proceedings influenced by husband’s litigation misconduct

VV v VV [2022] EWFC 46 - Costs order

VV v VV [2022] EWFC 41 (13 May 2022) ([2022] 2 FCR 681, [2022] EWFC 41, [2023] 1 FLR 170; - Pre-marital cohabitation, misconduct and party needs

Traharne v Limb [2022] EWFC 27 (31 March 2022) – Post nuptial agreement

CW v CH (MFPA 1984 Part III: Interim Applications) [2022] EWFC B1 (10 January 2022) - MFPA 1984 Part III: Interim Applications

LS v PS (Rev1) [2021] EWFC 108 (23 December 2021) ([2021] EWFC 108, [2022] 1 FCR 691, [2022] 4 WLR 19, [2022] WLR(D) 38 - Application by an intervenor for disclosure of privileged material from a PFDR

Siddiqui v Siddiqui & Anor [2021] EWCA Civ 1572 (02 November 2021) ([2021] EWCA Civ 1572, [2022] 1 All ER 860 - ECHR-based appeal against the High Court's refusal to grant an adult man financial relief against his parents

Crowther v Crowther & Ors (Financial Remedies) (Rev1) [2021] EWFC 88 (27 October 2021) - Extreme and unusual example of an acrimonious family law case

AG v VD [2021] EWFC 9 (04 February 2021) – Jurisdictional issues

FS v RS and JS [2021] 2 FLR 641 – Human Rights and provision for adult children

AG v VD [2020] 2 FLR 1248 – Privilege in financial remedies

Re YM and NM [2020] 1 FLR 1246 – Maintenance, injunctions and non-disclosure

AJ v DM [2019] 2 FCR 1 – Maintenance Regulation and divorce jurisdiction

NN v AS and Others [2019] 1 FLR 1397 – Financial Orders after Egyptian Divorce

AAZ v BBZ (no 3) [2017] 2 FCR 461 – Legal Professional Privilege

AAZ v BBZ (no 2) [2017] 2 FCR 450 – Discovery against solicitor asserting privilege

TJB v RJB [2017] 1 FLR 1497 – Enforcing English order in Switzerland

Juffali v Juffali [2017] 1 FLR 729 – Big need in big money

Briers v Briers [2017] 1 FCR 309 (CA) – Post separation accrual

WA v The Estate of HA (Deceased) and Others [2015] 1 FLR 1360 – Barder events

ABC v PM and another [2015] All ER (D) 122 (Apr) – Setting aside a solicitor’s charge

Chapman v Kawash [2015] All ER (D) 67 (Jan) – Setting aside consent orders

Seagrove v Sullivan – [2015] 2 FLR 602 – Tolata Claims and bundles

MET v HAT (No 2) [2015] 1 FLR 602 – Interim Maintenance

Mann v Mann [2014] 2 FLR 928 – Enforcement and mediation

MET v HAT [2014] 2 FLR 692 – Interim maintenance

Sharbatly v Shagroon [2013] 1 FLR 1493 (CA) – non marriage case

L v L [2012] 1 FLR 776 – Re-trial of financial remedies after appeal

Traversa v Freddi [2011] 2 FLR 272 (CA) – financial relief after an overseas divorce

Marano v Marano [2010] 1 FLR 1903 (CA) – business valuations during the financial crisis

Myerson v Myerson (No 2) [2009] 2 FLR 197 (CA) – share price collapse after a final order

MacLeod v MacLeod [2009] 1 FLR 641 (PC) – Pre-nuptial and marital agreements

S v S [2009] 1 FLR 254 – trusts, tax and notice to show cause why agreement should not be upheld

MB v KB [2007] 2 FLR 586 – financial provision for a child after and in addition to divorce settlement

S v S  [2007] 1 FLR 1496 – effect of conduct on award, definition of non-matrimonial property

M v M  [2005] 2 FLR 533 – big money, short marriage

GW v RW  [2003] 2 FLR 108 – matrimonial property, length of marriage provision for children

F v F  [2003] 1 FLR 847 – family company, illiquidity , clean break

Re G  [2003] 1 FLR 870 – divorce procedure

G v G [2003] 2 FLR 71 – maintenance for legal fees

H v H [2002] 2 FLR 1021 – professional partnership, separate property, inheritances

Ranson v Ranson [2002] 1 FCR 261 (CA)

V v V [2001] 2 FLR 299

Varma v Varma and Acanthus Ltd [2002] Fam Law 503

Mubarak v Mubarak [2001] 1FLR 673

Re Dianoor Jewels Ltd [2001] BPIR 234

Called 1995. Silk 2015

Deputy High Court Judge - February 2024.

FLBA

Christ Church, Oxford.

Directory Quotes

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 enjoys photography and sometimes writes reviews for the TLS.