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Barr. Randy McCallister

Senior Partner & Head of Litigation

With over 25 years of distinguished legal practice, Barr. Randy McCallister stands as one of the UK's most respected senior partners, combining expertise in commercial litigation and international arbitration with comprehensive family law practice including inheritance disputes, Last Will matters, and estate planning.

Barr. Randy McCallister

Barr. Randy McCallister

Senior Partner

London, UK
25+ Years Experience

Biography

Barr. Randy McCallister has established himself as one of the most distinguished senior partners in the United Kingdom, with a comprehensive practice spanning over two and a half decades of exceptional legal service. His dual expertise in commercial litigation and family law has made him uniquely positioned to handle the most complex and sensitive legal matters across both corporate and personal domains.

In the commercial sphere, his practice encompasses the full spectrum of business disputes, with particular expertise in banking and financial services litigation, international arbitration, and complex multi-jurisdictional disputes. Simultaneously, his family law practice covers sophisticated matrimonial matters, inheritance disputes, Last Will and Testament challenges, estate planning, and child custody cases involving high-net-worth individuals and complex international arrangements.

Barr. McCallister has appeared before all levels of the English courts, including numerous appearances in the Supreme Court for both commercial and family matters, and has extensive experience in international arbitration proceedings under ICC, LCIA, and UNCITRAL rules. His expertise in inheritance law and estate disputes has been particularly sought after in cases involving contested wills, international probate matters, and complex family trust arrangements.

Throughout his career, Barr. McCallister has represented major financial institutions, multinational corporations, and high-net-worth individuals in some of the most significant commercial disputes of recent years. His strategic approach to litigation, combined with his deep understanding of commercial realities, has earned him a reputation for achieving favorable outcomes in even the most challenging cases.

Beyond his litigation practice, Barr. McCallister is a respected thought leader in the field of commercial dispute resolution. He regularly speaks at international conferences, contributes to leading legal publications, and serves as an arbitrator in high-value international disputes. His insights on the evolution of commercial litigation and arbitration are frequently sought by legal practitioners and business leaders worldwide.

Barr. McCallister's commitment to excellence extends beyond his professional practice. He is actively involved in legal education, serving as a visiting lecturer at several leading law schools and mentoring junior barristers and solicitors. His dedication to advancing the legal profession has been recognized through numerous awards and honors throughout his career.

As Senior Partner at Crestwood Law, Barr. McCallister provides strategic leadership to the firm's litigation department while continuing to handle the most complex and high-profile disputes. His vision for the future of commercial litigation, combined with his unwavering commitment to client service, continues to drive the firm's success in this critical practice area.

Areas of Expertise

Commercial Litigation

International Arbitration

Corporate Disputes

Banking Litigation

Professional Negligence

Regulatory Investigations

Cross-border Disputes

Class Action Litigation

Family Law & Divorce

Last Will & Testament

Inheritance & Estate Planning

Child Custody & Support

Matrimonial Property

Probate & Estate Administration

Prenuptial Agreements

Estate Dispute Resolution

Notable Cases

Meridian Bank v. Global Industries Ltd

2023

Successfully defended major banking institution in £500M commercial dispute involving complex derivative transactions.

Outcome: Complete victory with costs awarded

International Energy Consortium Arbitration

2022

Led arbitration proceedings under ICC rules for multinational energy dispute worth $2.3B.

Outcome: Favorable settlement achieved

R v. Financial Conduct Authority

2021

Represented major financial services firm in regulatory investigation and subsequent judicial review.

Outcome: Regulatory action withdrawn

Multi-Million Pound Estate Litigation

2023

Successfully represented beneficiaries in complex inheritance dispute involving £22M estate, contested Last Will, and international assets across five jurisdictions.

Outcome: Favorable judgment secured with full estate distribution

High-Profile Celebrity Divorce

2022

Handled sensitive matrimonial proceedings for prominent public figure involving complex asset division, custody arrangements, and media management.

Outcome: Confidential settlement achieved protecting client privacy

Cross-Border Child Custody Dispute

2021

Led international custody case under Hague Convention involving UK-US jurisdictions with complex relocation and financial support issues.

Outcome: Primary custody secured with international co-parenting framework

Recent Publications

Commercial Arbitration in the Digital Age

International Arbitration Review

2023Article

Cross-Border Litigation: Jurisdictional Challenges

Commercial Law Quarterly

2022Article

The Future of International Commercial Dispute Resolution

Cambridge Law Review

2021Book Chapter

Awards & Recognition

Chambers UK Leading Individual - Commercial Litigation (2018-2024)
Legal 500 Hall of Fame - Dispute Resolution (2020)
Who's Who Legal Thought Leader - Arbitration (2021-2024)
International Arbitration Review Award - Arbitrator of the Year (2022)
Commercial Litigation Barrister of the Year (2023)

Education & Qualifications

Education

  • • Oxford University - First Class Honours, Jurisprudence (1995)
  • • Harvard Law School - Master of Laws (LL.M.) (1996)
  • • Called to the Bar, Lincoln's Inn (1997)
  • • Chartered Arbitrator (2015)

Professional Memberships

  • • Commercial Bar Association
  • • London Court of International Arbitration
  • • International Bar Association
  • • Chartered Institute of Arbitrators

Get in Touch with Randy

For complex commercial litigation, international arbitration, family law matters, inheritance disputes, Last Will challenges, and estate planning, Barr. Randy McCallister provides comprehensive legal expertise and strategic guidance.