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UK

Jacqueline Brown

Partner

England & Wales

020 3319 3700

jacqueline.brown@keystonelaw.co.uk

Jacqueline provides specialist advice for individuals and businesses in the entertainment sector and sport.

She has unrivalled experience of the complexities of equine business and sport. She frequently advises on commercial contracts, resolving disputes, and national and international regulatory and disciplinary matters, representing elite horse riders, jockeys, owners, trainers and equestrian businesses. Her clients have included Peter Charles MBE, Ben Maher MBE, Michael Whitaker, Billy Twomey, Tim Stockdale, Michael Duffy, and Andrews Bowen Limited.

She worked extensively with the late Mel Stein on disputes in football and, with him, represented the Association of Football Agents and its members in respect of the early incarnations of the FA Agent Regulations. She has also advised on motorsport, ice hockey, darts, and boxing disputes.

In the world of entertainment, she has represented many well-known individuals and companies, from the creators of the music for Thomas the Tank Engine to the members of Muse and Gabriels, managers such as Jazz Summers, and major and independent publishing and recording companies.

 

Expertise

Jacqueline represents clients in complex domestic and international disputes across courts, arbitral panels, and sports tribunals. Her experience spans mediation, appeals, and disciplinary proceedings.

Experience

  • Represented a mother and her children in a High Court dispute with their brother / uncle about a high-value property portfolio held by various off shore companies.
  • Advised one side in respect of their disagreement with joint venturers in a fine art company and the settlement to end their relationship.
  • Advised a dentist in a dispute under the services contract with her practice.

Jacqueline advises clients across the sports industry on contracts, disputes, and regulatory matters. Her expertise includes equine law, sponsorships, disciplinary issues, doping, team selection, and brand and image protection for athletes and owners.

Experience

  • Numerous appearances before the Federation Equestre Internationale Tribunal: defending several international riders against human and equine anti-doping charges, representing numerous owners in appeals against the disqualification of European Championship ponies due to height limitations, challenging a rider’s disqualification from an International Grand Prix due to blood marks from spurs and overturing wrongful exclusion from the European Championships.
  • Appeals to the British Olympic Association regarding eligibility for selection Team GB riders.
  • Advised riders upon their sports nationality change including Peter Charles MBE from Ireland to Great Britain, Mario Deslariers from Canada to USA, Danielle Goldstein from the USA to Israel and Karen Polle from the USA to Japan.
  • Represented Ruben Loftus Cheek in proceedings against a former agent in FA Rule k arbitration following him signing the highest-value first professional playing contact with Chelsea FC.
  • Represented the Association of Football Agents in relation to the first incarnation of the FA Agents Regulations.
  • Instructed on contractual disputes in motorsport.
  • Advised in relation to various misconduct offences by a high-profile jockey.
  • Represented the trainer Martin Keighley before the BHA Disciplinary Panel upon his winner at the Cheltenham Festival returning a test for a prohibited substance.
  • Represented riders, owners, officials and a show centre on various nation governing body disciplinary actions.
  • Advised Andrews Bowen on the commercial agreements for the equestrian event surfaces at the London Olympic Games and various matters.
  • Advised in relation to the new “City Racing” initiative.
  • Advised an owner and trainer on a commercial agreement for the part-sale to investors in an elite showjumper.
  • Advised riders upon their commercial agreements with owners.
  • Represented an international rider in proceedings against an owner for whom he rode.
  • Advised upon the breakdown of a partnership concerned with the breeding, buying, training and selling of a large number of showjumping horses.
  • Advised upon many disputes about the sale of competition horses often across several jurisdictions.
  • Acted for owners in claims in respect of negligent veterinary services and acting on behalf of vets.

Jacqueline advises artists, producers, and music businesses on contractual, copyright, and partnership disputes. Her experience includes royalty audits, brand and image protection, joint ventures, and resolving conflicts over rights, performances, and band names.

Experience

  • Represented the members of Gabriels in High Court proceedings about a disputed agreement.
  • Represented the members of Muse in their dispute with Taste Media.
  • Represented 141a Management in its claim against Jessie J.
  • Represented Keisha Buchanan in her claims in respect of  Sugababes.
  • Represented Big Life Management in its claim against Richard Ashcroft.
  • Represented Sami Chokri in his copyright infringement claim in respect of “Shape of You”.
  • Advised a legacy act to secure a licence for a sample use by Def Jam records.

Please note: The experience list above may include examples of work completed prior to joining Keystone Law.

Recognition

Recognised by the Legal 500 for Media: Film & TV 2025-2026

Recognised by the Legal 500 for Media: Music & Media 2026

Jacqueline qualified as a solicitor in 1992. Prior to joining Keystone Law in 2011, she worked at Clintons.