Head office (London, UK)

John Leonida

Partner, London


+44 (0) 20 7876 4875
+44 7793 834 438

Main office

+44 (0) 20 7876 5000
+44 (0) 20 7876 5111
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John specialises in international marine transactional work and is a prominent member of the firm’s yacht group. His practice ranges from advising operators in the oil support industry to owners and builders of some of the world’s most luxurious superyachts.

He also advises on regulatory issues relating to the ownership of ships and has extensive experience in negotiating shipbuilding and ship financing documents. His clients are either shipping entrepreneurs or, in the case of John’s superyacht work, high net-worth individuals, superyacht builders, designers and banks.

John has been a partner since May 2003. He is a former development economist with the Foreign Office’s overseas development administration and has an economics degree from the University of Sussex and a masters in political economics from Middlesex University. He also has a law degree from the University of Westminster.

John is a regular contributor to superyacht symposia on issues as diverse as tax, the legal pitfalls surrounding superyacht design as well as superyacht finance. He also writes for several publications, including Boat International and The Superyacht Report.

John is ranked in Band 1 in Chambers & Partners HNW, and is recommended by Legal 500. He is described as a“very visible force in the market and has top-quality clients” (Chambers HNW 2019). Another commentator states: “He is excellent at what he does and is extremely well known in yachting circles. He couldn’t be better.” (Chambers HNW 2019)

  • Advising on the major expansion of a West African oil service provider in their new buildings programme
  • Advising on approximately $4.0 billion worth of superyacht transactions since 2005
  • Advising on the design and build of a 120 meter plus luxury superyacht
  • Regularly advising owners on shipbuilding refinancings
  • Regularly acting for yacht and merchant ship sale and purchase


  • Finance
  • Shipbuilding
  • Sale and purchase

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