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London

Founded in 2012, Signature Litigation has grown into one of London’s pre-eminent specialist dispute resolution practices. From the outset, we set out to do things differently: a conflict-free, disputes-only platform designed to give clients the undivided focus and strategic agility that complex, high-stakes matters demand.

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Gibraltar

Established in 2017, Signature Litigation's Gibraltar office was founded to address growing demand for specialist expertise in commercial litigation and private wealth disputes on the Rock.

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Paris

Signature Litigation AARPI houses one of France’s most enviable product liability practices, with the team also handling commercial and corporate litigation, insurance and reinsurance, toxic tort and ESG, civil fraud and asset tracing, international arbitration, administrative and public law.

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Frankfurt

Frankfurt has emerged as one of Europe's foremost financial and commercial centres and, increasingly, as a bridge between European and Asian markets. With that growth comes an increasing demand for sophisticated dispute resolution. Signature Litigation established its Frankfurt office to meet this need, bringing our conflict-free, disputes-only platform to the German market.

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Contentious Trusts, Estates and Private Wealth Disputes

“Signature Litigation is well known for its representation of high-net-worth individuals.”

Chambers UK 2025

International private wealth, trust arrangements and private investment fund management disputes are at the heart of many of our cases. We combine a wealth of knowledge and experience with discretion which is an essential requirement for this type of work.

“The firm has strong international capability and is adept at handling multi-jurisdictional cases.” Chambers UK 2025, Commercial and Corporate Litigation

We have significant experience in a wide variety of commercial disputes arising in a trust context. Some trust arrangements involve formal trust structures in offshore jurisdictions; others involve disputes arising out of informal trust relationships. We also regularly advise on the applicability of constructive trusts to the proceeds of fraud.

We have considerable experience in dealing with private wealth disputes for families, family offices, high-net-worth individuals, trustees, trust companies and beneficiaries in international and offshore trust litigation.

We act for beneficiaries who are often high-net-worth individuals; trustees; private investment funds and other types of private investment holding and management vehicles; their managers; and banks. We also act for beneficiaries in estate management disputes involving trust structures.

These disputes are typically very complex in nature, requiring expert legal and strategic advice particularly on alternative and often conflicting laws and jurisdictions. Our lawyers are ideally placed to provide that assistance – complex cross-border work is what we do. These disputes also often involve allegations of fraud – our recognised expertise in fraud related matters allows us to navigate through all fraud related issues.

We are ideally placed for this type of work which is often requires commercial litigation and international arbitration, as well as asset tracing & recovery expertise involving assets located in multiple jurisdictions and which are often held in offshore structures. We benefit from strong and diverse connections with other professional advisers in the Channel Islands, the major Caribbean offshore centres, Continental Europe, Hong Kong, Panama and Singapore.

Due to the complexity and highly-contentious nature of this work, we often appear before high appellate courts in the UK, France and Gibraltar, as well as overseas.

 

KEY INDIVIDUALS

Graham is very sharp, available and a great advisor in the most complex cases. He's an invaluable lawyer!

– Chambers UK 2025, Fraud: Civil

Renowned for his ‘incisive legal mind and court charisma’, leveraging extensive experience in global commercial litigation and contentious trust disputes.

– The Legal 500 EMEA 2025, Gibraltar: Dispute Resolution

Thomas Rouhette “ranks among France’s most highly regarded names in the litigation arena."

– The Legal 500 EMEA 2025, France: Dispute Resolution: Commercial Litigation

Ioannis is excellent. He's straight-talking and has an excellent ability to analyse issues in cases and knows what you need to focus on and how to get there. He is commercial and practically minded.

– Chambers UK 2025, Fraud: Civil

Case Highlights

Representing a beneficiary of a high-value 19th century will trust (through a series of wills) seeking estate distribution. The matter involved complex trustee and beneficiary capacity issue, as well as difficulties in ascertaining other beneficiaries.

Representing a Channel Islands company in a multi-million GBP claim arising out of loan agreements within a complex trust structure.

Representing beneficiaries of a deceased estate in multi-million GBP claims against the executors of the estate concerning the status of some of the estate's assets and including allegations of breach of trust.

Representing several defendants in a GBP 10m dispute concerning the ownership and control of digital assets and involving allegations of breach of trust and fiduciary duties. The matter included applications to the Supreme Court of Gibraltar to discharge the WFO and trust preservation orders obtained by the claimants.

Representing Gibraltar-registered defendants in a complex multi-million GBP trust dispute in the Supreme Court of Gibraltar between a beneficiary of a Channel Island trust and several defendants, which included a corporate trust administrator, directors and a corporate service provider (Lemberga v Serillo (PTC) Ltd & Ors [2020]). The matter concerned the scope of the Court's power to intervene in the administration of a trust and, in particular, in relation to the scope of directors' duties. The matter also determined whether by entering into a client service agreement an administrator of a trust assumes legal obligations of a trustee.

Representing liquidators of a trust management company in a groundbreaking matter of sector significance involving administration and subsequent conversion to liquidation of a protected cell company in Gibraltar and recovery of company assets from the previous director. The matter included applications which went up to the Court of Appeal and the Supreme Court of Gibraltar.

Representing the trustees of two related trusts with assets valued in excess of GBP 200m in a dispute with members of the family involving allegations of a breach of trust and an attempt to remove the trustees. The matter involved strategic coordination of legal teams in multiple jurisdictions and mediation.

Representing offshore trust companies in resisting USD 300m enforcement and tracing proceedings brought by a leading paper packaging and recycling company in Central Asia and others for alleged beneficial interests in offshore trust assets. The case involved freezing and proprietary injunctions.

Representing the beneficiary of a family trust in multiple contentious trust proceedings with the total value of GBP 2bn concerning privacy, as well as anti-suit injunction proceedings in Gibraltar related to a derivative action against the directors of a listed company in England.

Representing the beneficiaries of a Panamanian Foundation in claims for losses up to USD 500m incurred due to the fraudulent mismanagement of the offshore trust structure by rogue fiduciaries. The claim included applications for interim relief (including worldwide freezing orders, asset disclosure orders and information orders) in the Caribbean, Europe and Asia, in support of an ICC arbitration seated in Panama.

Representing the investment fund of Georgian billionaire Bidzina Ivanishvili and his family in a dispute valued at USD 600m–USD 1.2bn against Credit Suisse entities for the recovery of losses arising out of mismanagement of his investment portfolio through a range of trust arrangements, which have led to criminal proceedings against the bank’s fund managers. This case involved parallel proceedings in Switzerland, Singapore, New Zealand and Bermuda.