Leon has experience in a broad range of commercial disputes, spanning both litigation and arbitration proceedings. His practice focuses on energy and resources, construction and insolvency matters.
Leon's experience includes matters concerning gas and electricity supply, pricing, joint ventures, directors' duties, mining, property, construction projects, and judicial review, as well as matters involving private wealth. He has acted in domestic and international arbitrations, including investor-state arbitrations, and accepts appointments as arbitrator.
Before joining the bar, Leon worked for several years as an arbitration counsel at the specialist international arbitration firm Three Crowns LLP in Paris. He was previously a lawyer at Blake Dawson (Ashurst), and an associate at the Supreme Court of Western Australia.
Leon is an Honorary Fellow at the University of Western Australia Law School and teaches international commercial arbitration. He has published on various topics, including as a co-author of Decoding International Arbitration (2022) and the Arbitration chapter of Halsbury's Laws of Australia, and as an editor of Long Term Contracts (2013).
Leon holds an LLB (Hons) and BCom from the University of Western Australia, and an LLM from Harvard Law School as a Frank Knox Memorial Fellow. He was admitted to the New York Bar in 2015.