Leighton O'Brien
About Leighton O'Brien
Leighton O'Brien is a lawyer based in Sydney, AU and has been recognized in The Best Lawyers in Australia™ since 2008. Leighton O'Brien is recognized in the following practice areas:
-
Sydney, Australia
- Alternative Dispute Resolution
- Construction / Infrastructure Law
- Litigation
- Project Finance and Development Practice
Current Firm: Allens
Location: Sydney, AU
Nearby Lawyers
Michael has over 30 years of experience in immigration law and has been recognised as an Accredited Specialist in immigration law by the New South Wales Law Society since 1998. He is an Associate Fellow of the Migration Institute of Australia, a member of the New South Wales Law Society committee for Accredited specialists in Immigration law, Chairman of the Conduct Panel for the Migration Institute of Australia and member of The Australian and New Zealand College of Notaries. Michael is also...
Duncan has over 30 years’ experience in construction / infrastructure, mining, arbitration, planning, commercial, insurance and common law disputes and advice work. His practice is mainly concerned with construction-related and insurance disputes covering buildings, roads, railway infrastructure and rolling stock, mining and manufacturing, processing operations, ports, airports and pipelines, and in planning and environmental disputes for both councils and developers. Duncan is a panel ...
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Craig is a planning and environment Partner in our National Property and Development team. He is experienced in all areas of planning, development, environment, contaminated land, heritage, water, pollution, waste, compulsory acquisition, and workplace health and safety law. Craig is also experienced in the preparation and conduct of litigation in the NSW Land & Environment Court and other specialist Courts and Tribunals across Australia. In addition, Craig has significant expertise in AF...
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Callan O'Neill is a top attorney recognized by Best Lawyers in the practice area(s) of Sports Law. Callan, who practices law in Sydney, Australia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Callan is held by other top lawyers in the same geographic and legal practice area.
John leads Holman Webb’s national dispute resolution group in Sydney. He is recognised for his expertise and technical ability in all aspects of dispute resolution including arbitration and mediation. He advises upon issues arising in a wide range of matters including constitutional law (Court of Disputed Returns), administrative law (professional conduct, discrimination, taxation appeals, ASIC reviews, FOS appeals), securities enforcement, insolvency, Corporations Act, Australian consu...
Marlia is an experienced media/entertainment, intellectual property and privacy lawyer who has extensive top-tier law firm expertise and a unique client perspective after working as a senior in-house lawyer for many years. She was the Senior Litigation Counsel at News Corp Australia for four years, and previously worked at a top-tier international firm for 13 years where she acted for and advised most of Australia’s major media organisations, social media and streaming platforms, large ...
Nuala accepts briefs in all areas of commercial law but has special expertise in complex, high–value engineering and construction disputes. She regularly appears in the Federal Court of Australia, the Court of Appeal New South Wales, the Supreme Court of New South Wales and in private arbitrations and mediations.
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