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Work 020 7148 7800
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Marc Keidan

Work 020 7148 7800
Cooke, Young & Keidan LLP

Work Department

Dispute Resolution; Litigation; Banking Litigation; Fraud:Civil; Partnership; International Arbitration


Partner; Co-founder of CYK


Qualified in 1999 after training with Simmons & Simmons; Associate at Theodore Goddard/Addleshaw Goddard (1999-06), Senior Associate at Masseys LLP (2006-08), Partner at Cooke, Young & Keidan LLP (2009 to date).


Financial Services Lawyers Association; London Solicitors Litigation Association; Commercial Litigation Association; Association of Partnership Practitioners

London: Corporate and commercial

Financial services

Within: Financial services

'A well-established powerhouse boutique in banking and financial services litigation', Cooke, Young & Keidan LLP has also 'developed an excellent regulatory practice which compliments the fine work they have been doing in the banking litigation sphere since the firm’s inception'. Himself formerly in-house at MF Global, the 'very bright and utterly charming' Stephen Elam is a 'very safe pair of hands' in relation to regulatory enforcement work on behalf of a range of financial institutions including a growing number of brokers. The 'hugely energetic and indefatigable' Marc Keidan is 'particularly well-known in the field of banking and financial services disputes'  and regularly acts in financial disputes adverse to the banks and in hedge fund related work. Other recommended practitioners include 'skilled litigator' Sinead O'Callaghan, 'rising star' Daniel Burbeary and the 'very bright and client-focused' Lydia Danon.

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Within: Partnership

Cooke, Young & Keidan LLP¬†is a boutique litigation firm, which handles partnership disputes across industries with ‚Äėan excellent level of service‚Äô, although it has particular expertise in the financial services sector. The group acts for and against LPs, LLPs and traditional partnerships in the spectrum of partnership disputes, including allegations of bad faith, misappropriation of assets, breaches and enforcement of restrictive covenants and minority shareholder oppression. Promoted to partner in October 2017, ‚Äėespecially capable‚Äô Lydia Danon¬†is the primary contact and noted for her ‚Äėforensic discipline‚Äô, which she has recently employed in a high-value, multi-jurisdictional partnership dispute in the High Court. Name partner Marc Keidan¬†is ‚Äėideally suited to partnership litigation‚Äô and stands out for his ‚Äėwillingness to get stuck into difficult fights‚Äô. Sinead O‚ÄôCallaghan¬†¬†and ‚Äėbrilliant strategist‚Äô Philip Young¬†are also key contacts.

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London: Crime, fraud and licensing

Fraud: civil

Within: Fraud: civil

‚ÄėInnovative, super-efficient, devastatingly effective and technically excellent‚Äô Cooke, Young & Keidan LLP¬†is a boutique firm of ‚Äėwell-lead, intelligently strategized, highly motivated and very successful fraud litigators‚Äô. The firm acts for CMOC Sales & Marketing after it was defrauded by unknown conspirators. This matter has involved asset tracing and obtaining a worldwide freezing order against ‚Äėpersons unknown‚Äô. This is believed to be the first such freezing order of its kind and the case is valued at over ¬£8m. Key practitioner Marc Keidan¬†is ‚Äėa no-nonsense lawyer who gets results for his clients‚Äô. Philip Young¬†is ‚Äėsuper-bright, technically spot-on and a thoughtful strategist‚Äô. Lydia Danon, who is ‚Äėvery plugged into the market‚Äô and Daniel Burbeary, who is ‚Äėexcellent and is genuinely starting to make a mark in the civil fraud arena‚Äô were both promoted to partner. Robert Coffey¬†was appointed as managing partner and Gerald Cooke¬†retired as senior partner but remains a consultant within the firm.

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London: Dispute resolution

Banking litigation: investment and retail

Within: Leading individuals

Marc Keidan - Cooke, Young & Keidan LLP

Within: Banking litigation: investment and retail

Free of conflicts of interest and 'delivering service, knowledge and skills that are impeccable and of the highest quality', Cooke, Young & Keidan LLP 'has carved a solid reputation on the claimant side'. The practice regularly acts against financial institutions, and the practice is well known for acting in major claims in the financial sector. Recent work includes obtaining a suite of orders to assist tracing stolen sums for CMOC Sales & Marketing, part of the China Molybdenum mining conglomerate and the victim of a fraud whereby monies were stolen from its bank accounts following a sophisticated payments fraud; it also assisted the third defendant in Commercial Court litigation proceedings issued by a UK fund manager for a Libyan capital investment fund, FM Capital Partners, which alleged breach of fiduciary duties, related proprietary claims and unlawful means conspiracy in the structuring of complex structured products and investments. The 'diligent and knowledgeable' Philip Young focuses on substantial fraud-related cases, including those requiring urgent injunctive steps, and Marc Keidan, who is 'tenacious and aggressive', is best known for his claimant-side work. Other key names are the 'calm and knowledgeable' Sinead O'Callaghan and Stephen Elam; Lydia Danon  and Daniel Burbeary were made partners.

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Commercial litigation

Within: Commercial litigation

The 'amazingly good' specialist disputes practice Cooke, Young & Keidan LLP was recently active in substantial commercial litigation, involving commercial contracts, shareholder conflicts, disputes over arbitration awards, civil fraud cases, and matters involving banks. The team acted for OFSB in High Court Chancery Division proceedings regarding its shareholding in Zavarco. Philip Young is 'always thinking of new angles'; and Cooke, Young & Keidan LLP 'motivates the troops with a combination of hard work and good humour'. Other recommended advisers are Marc Keidan and Stephen Elam, while Daniel Burbeary and Lydia Danon were made partners. Gerald Cooke retired as senior partner but remains a consultant with the firm.

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International arbitration

Within: International arbitration

Cooke, Young & Keidan LLP is 'now well-established in this field and has a reputation for innovative and cost-effective ways'. The practice has substantial experience of conducting arbitrations under all the major institutional rules. The recently promoted Daniel Burbeary 'has a wealth of experience'; Marc Keidan and Sinead O'Callaghan are also key contacts.

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