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Wills, Estates and Trusts Disputes

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Quinn Emanuel’s global team offers personalized advice to high net worth individuals and family offices on disputes issues relating to estates, family trusts, contested executorships, wills and intestacy. Our lawyers have vast experience handling sensitive and complex cases—our lawyers have conducted over 2,500 trials and arbitrations, including a significant number on behalf of the most influential and affluent individuals globally—and won over 86% of them. There are several attributes that set us apart from other firms in this area.

Unique Resources and Experience. Our firm brings a commitment of resources and depth of experience that no other firm can provide. Our proficiency in handling multifaceted legal issues makes us the go-to firm for private clients when it comes to their most important and sensitive personal disputes. Our holistic approach ensures that every aspect of our clients’ needs is meticulously addressed. Our lawyers are adept at crafting innovative solutions that safeguard and enhance our clients’ wealth while maintaining the highest standards of confidentiality and integrity. This comprehensive service offering is a testament to our commitment to excellence and our ability to deliver results that exceed expectations.

Rare Global Expertise. Another key factor contributing to our esteemed position is our global reach and international expertise. Many of our clients have interests spanning multiple jurisdictions. Our network of 36 global offices coupled with our strong relationships with the elite disputes firms in those jurisdictions where we do not have our own presence allows us to provide seamless legal support across borders. This global perspective and capability is crucial for private clients who require consistent and coordinated legal advice wherever their assets may be located. Our ability to operate at the intersection of different legal systems and cultures, and to manage multilateral cross-border proceedings, makes us an invaluable partner for our clients.

Unparalleled Private Clients Experience. What truly sets us apart from our peers is the sheer magnitude of our private client base. We represent individuals and families with net worths that significantly exceed those of clients at other firms. This distinction is not merely in terms of financial assets but also in the complexity and global nature of our clients’ legal needs. Our clients commonly include billionaires, industry magnates, and top executives. Our ability to cater to such a discerning and affluent clientele underscores our outstanding legal prowess and client-centric approach.

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Recent Representations

  • Representing three of the Executors of the Estate of the late Dame Zaha Hadid, the world-renowned architect, in a highly contentious dispute with the fourth Executor before the English courts.

  • Representing Angela Shamoon, the widow of billionaire Sami Shamoon, together with her daughter, in successfully defending a challenge in the English courts relating to her late husband’s estate.

  • Representing members of the Jenkins family, the great-grandchildren of American-Mexican industrialist William O. Jenkins, in a prospective NAFTA arbitration against Mexico seeking to protect the assets of the charitable organization that their great-grandfather established, one of Mexico’s largest private charitable organizations.

  • Representing beneficiaries under private family trusts holding various global assets valued in the $100millions in defending challenges to the integrity of the trusts by other members of the family, involving parallel proceedings in multiple jurisdictions.

  • Representing the UHNW settlor of various offshore trusts holding the wealth generated through his considerable business operations in eastern Europe in litigation in the English courts against the former protector of those trusts who abused his position to defraud the client.

  • Representing the trustees of family trusts regarding restructuring and related tax risks, and in view of anticipated challenged to the trustees’ conduct.

  • Representing Brigita Morina in English proceedings concerning her entitlements under the will of her deceased fiancé.  The case concerned the governing law and validity of the will, and issues of revocation.  Quinn Emanuel succeeded and obtained an order for indemnity costs of GBP 6.8m from the other parties to the proceedings. 

  • Representing the Rosenthal family, one of the wealthiest and most prominent families in Central America, in connection with a high profile criminal prosecution against several family members and an OFAC investigation targeting family-owned companies alleging that family members and companies laundered funds for some of the largest narcotics traffickers in Latin America.

  • Representing an individual in challenging the disposition of an estate from which they were excluded by their late father in favor of other members of the family.

  • Representing an heir under a Sharia law will in contested English proceedings to appoint him as the legal representative of the estate with control of estate assets in England.

  • Representing the executors / trustees of BVI and Turks and Caicos trusts in actions by beneficiaries following the death of testator / settlor.

  • Acting against the executors of a deceased artist’s estate in an action regarding status of estate property.

  • Acting against the heirs of a Sharia law will in relation to the status of Cayman Island assets and the appointment of heirs as legal representatives of the estate in the Cayman Islands.

  • Representing the beneficiaries of a will in relation to the assignment to beneficiaries of estate property from Jersey and Guernsey Trustees.

  • Representing a confidential client, one of the wealthiest UK based families, and their family office on multiple and multi – jurisdictional investigations by the UK tax authorities going back 20 years relating to their complex trust arrangements (involving multiple trusts in the UK and off-shore) and intricate off-shore corporate structuring.
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