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
Campbell Bridge SC was admitted to the Bar in July 1977 and appointed Senior Counsel in 1998. After over 40 years of practice as an advocate in a wide range of areas involving common law and medical negligence trials, commercial and construction disputes, major inquests, and jury trials (including a jury inquest), public liability and professional indemnity cases, he now acts exclusively as a mediator. As counsel, he appeared in major cases, numerous major inquests and as Counsel Assisting in...
Dennis Miralis is a leading Australian defence lawyer who specialises in international criminal law, with a focus on complex multi-jurisdictional investigations and criminal prosecutions. His areas of expertise include bribery and corruption, global tax investigations, proceeds of crime, anti-money laundering, worldwide freezing orders, cybercrime, national security law, Interpol Red Notices, extradition and mutual legal assistance law. Dennis advises individuals and companies under investiga...
Megan Scott is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Megan, who practices law in Sydney, Australia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Megan is held by other top lawyers in the same geographic and legal practice area.
Peter has more than 25 years’ experience assisting clients involved in commercial disputes, and has recognised expertise solving problems that arise involving financial distress for clients or their counterparties. Peter provides legal services to his clients in a wide variety of commercial, property and administrative disputes, often working closely in consultation with our Property and Corporate & Advisory partners. This often involves providing advice in the initial stage of a di...
Sarah Wood is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Labour and Employment Law. Sarah, who practices law in Sydney, Australia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sarah is held by other top lawyers in the same geographic and legal practice area.
Julian Peake is a top attorney recognized by Best Lawyers in the practice area(s) of Professional Malpractice Litigation. Julian, 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 Julian is held by other top lawyers in the same geographic and legal practice area.
Regularly listed in Best Lawyers, the oldest and most highly-respected peer review guide to the legal profession worldwide, Matt specialises in: ► corporate finance ► agribusiness and agribusiness finance ► commodity finance ► real estate acquisition investment finance - commercial, industrial, residential ► real estate construction / development finance - commercial, mixed use & residential developments ► acquisition & leveraged finance ► financial asset sales and debt trading Phone ...
Megan Hawley is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Planning and Environmental Law. Megan, who practices law in Sydney, Australia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Megan is held by other top lawyers in the same geographic and legal practice area.
Lucinda is a Partner in the firm’s Corporate team. She also sits on the firm’s National Executive Team, in the role of Partner – Service Delivery. In this role, she manages and oversees the firm’s ability to drive improvement in and modernisation of our service delivery in all parts of our business. Lucinda is a specialist in the health, aged care, and retirement village industries and brings a commercial, solutions-driven approach to corporate transactions. Her work i...
Geoff is one of Australia’s leading transport and commodities lawyers with 25 years of experience in the field. He practises in complex commercial, disputes and regulatory matters for clients involved with the transport, agribusiness and energy and resources industries. Geoff also works closely with industry associations and brings a strong working knowledge of industry practices to his legal advice. He represents ship owners and carriers in relation to liability, admiralty and regulato...
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.