Tamar Halevy > Marriott Harrison LLP > London, England > Lawyer Profile

Marriott Harrison LLP
80 Cheapside

Work Department

Dispute resolution


Partner, and head of the dispute resolution team at Marriott Harrison. Specialising in complex and high value commercial disputes, both litigation and arbitration. Commercial disputes of all kinds including director and shareholder disputes, breach of contract, breach of trust, fraud and professional negligence as well as commercial aspects arising from matrimonial proceedings. Acts for corporate and individual shareholders/directors, high net worth individuals, corporate trustees, professional services firms, media and marketing services companies, technology companies, retailers, partnerships and others.


Joined Marriott Harrison, Partner since 2015.

Trained Nabarro Nathanson; qualified 1996. Joined Lewis Silkin 2000; partner 2007. Contributor to legal and trade press including ‘The Lawyer’, ‘Law Society Gazette’, ‘In-House Lawyer’, and ‘New Law Journal’. Contributor to published books ‘Distress for Rent’ (1999); ‘Employment, Partnership and Discrimination Law for Professional Partnerships’ (2005); and ‘ADR Client Strategies in the UK’ (2008). Contributor to two Legal Network Television programmes on conflicts of interest and solicitors’ professional rules.




Chartered Institute of Arbitrators; British-Russian Law Association; Citywealth Women in Wealth Club


Bristol University (LLB); Cambridge University (MPhil); King’s College, London (LLM); College of Law (Law Society Finals)


Skiing, salsa dancing

Lawyer Rankings

London > Dispute resolution > Commercial litigation: mid-market

Marriott Harrison LLP‘s commercial litigation team is able to leverage the firm’s notable corporate law credentials, in relation to corporate disputes, including shareholder conflicts and joint venture/post-transaction-related claims. A substantial amount of the group’s work comprises international features. Dispute resolution head and shareholder disputes expert Tamar Halevynavigates the most complex situations with ease‘, while Simon de Broise, who is experienced in high-value disputes, is a June 2022 partner hire from Collyer Bristow LLP (where he was senior associate).