Widely regarded as one of the UK’s most revered family lawyers, Catherine leads the family practice and is the firm's senior partner.

Catherine has established her reputation at the pinnacle of family law. Her practice encompasses the full spectrum of family law in instances of relationship breakdown, and she advises on the highest profile, highest value and most complex cases in the family courts.

Her clients typically face significant public and media scrutiny; Catherine resolves their most personal issues with empathy, sensitivity, determination and discretion. She’s described as having an “incredibly impressive strategic approach” and “unparalleled” client care skills. In April 2024 she was elected as the firm’s first female senior partner.

Depending on each client’s needs, Catherine’s approach is tailor made; whether that be successful negotiating outside of the court process or tough litigating within it. Her work frequently involves high net worth individuals, ranging from successful CEOs and investment bankers, to sports stars and entertainers. Catherine specialises in complex financial matters, frequently advising her clients with regard to assets and trust structures, including locating hidden assets.

Catherine is also highly experienced in all private law children matters including residence and contact, leave to remove children from the jurisdiction (both achieving and preventing), specific issue applications and prohibited steps orders.

Catherine is particularly concerned with mental health issues for children and adolescents; she has for some time been involved with the Anna Freud Centre and is a trustee. She is also a trustee of the National Gallery Foundation Trust.

Gary is a well-known international tax partner (non-lawyer) with particular expertise in contentious tax matters. He previously held senior positions at HMRC and leading accountancy firms.

He has particular expertise in complex structures, including trusts and funds both in the UK and overseas, and supports non domicile and international clients in identifying areas of risk in their tax affairs. Gary is an expert on the various overseas tax agreements, international transparency, exchange of information and the increasing need for substance.

Gary has particular expertise assisting clients who need to make disclosures to HMRC or who are under Code of Practice 8 & 9 (COP8 and COP9), or criminal tax investigation. He advises on international tax issues, the OECD BEPS programme (UK implementation) and the EU Anti Avoidance Tax Directive.

He also advises private clients, trusts and corporate clients on a range of complex tax issues such as restructuring, residence, non domicile/remittances, transfer pricing matters, employment and property tax and various other matters including VAT.

Gary spends a considerable amount of his time helping high net worth and high-profile individuals and their companies on managing tax avoidance dispute issues and tax risks relating to overseas structures. Gary also advises, in collaboration with our reputation management lawyers, individuals on protecting what is rightfully theirs while at the same time limiting any media exposure.

Gary is an author for Bloomsbury and a tax lecturer on international tax matters. He also leads for the tax profession in tax consultations with HMRC and the Treasury.

Gary is ranked Band 1 in the Chambers and Partners High Net Worth Guide for Tax: Private Client. Citywealth have listed Gary in their top 100 international private client litigation lawyers.

Chris is a private client adviser to individuals, families and trustees. He helps clients transfer wealth between generations, protect it from third parties, plan for death or incapacity, and manage complex cross-border tax and legal issues.

He has significant experience acting for trustees in international disputes and also conducts the administration of estates which are the subject of dispute. He advises on will planning and probate, particularly those which involve multiple jurisdictions, and acts as executor and administrator of estates.

He advises both international and domestic clients, with a particular focus on US-connected clients and those from LATAM and Africa. He has an interest in the ‘next gen’ of wealth owners and speaks extensively on the topic of transitioning wealth to millennials and Gen Z. He is globally recognised as a leading expert on trustees engaging in ESG, sustainable and values-aligned investing.

Chris has acted as an expert witness on English tax and legal questions in both UK and international disputes.

May is a managing associate who advises on private client work.

May advises UK and international individuals and families on structuring, succession planning and capital taxes. May has particular expertise acting for entrepreneurs, business owners and entertainment clients on their wills, trusts and wider estate plans. An increasing part of May’s practice focuses on working with clients on their philanthropy and charitable giving, as an integral part of their planning, and May is a true expert in this area.

May trained at Harbottle & Lewis, qualifying in 2017.

May has been named as one of the Best Lawyers: Ones to Watch for the past three years. May has been named as a "Rising Star" by The Legal 500 in 2023, 2024, and 2025.