Justin O'Callaghan
About Justin O'Callaghan
Justin O'Callaghan is a lawyer based in Brisbane, AU and has been recognized in The Best Lawyers in Australia™ since 2020. Justin O'Callaghan is recognized in the following practice area:
-
Brisbane, Australia
- Construction / Infrastructure Law
Current Firm: K&L Gates LLP
Location: Brisbane, AU
Nearby Lawyers
Kirsten Van Der Wal is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Negligence. Kirsten, who practices law in Brisbane, Australia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kirsten is held by other top lawyers in the same geographic and legal practice area.
Kelli has extensive experience in insurance, product liability, public liability and workers’ compensation having acted for more than 30 years on behalf of insurers (both domestic and international), corporations, government bodies and instrumentalities. In the insurance area she has vast experience in acting on liability claims, particularly product liability, public liability and workers’ compensation. She has appeared before courts, regulatory bodies, inquiries and coronial inq...
Sean McMahon is a top attorney recognized by Best Lawyers in the practice area(s) of Funds Management and Investment Funds. Sean, who practices law in Brisbane, Australia, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean is held by other top lawyers in the same geographic and legal practice area.
Justin Raiteri is a top attorney recognized by Best Lawyers in the practice area(s) of Leasing Law and Real Property Law. Justin, who practices law in Brisbane, Australia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Justin is held by other top lawyers in the same geographic and legal practice area.
Tony is a senior lawyer with more than 35 years' experience in complex agreements and disputes, particularly across intellectual property (IP), information technology (IT), life sciences, and franchising. Tony also has broad international experience, particularly in the USA, UK, and Asia. Tony has been involved in many seminal deals and cases. His experience includes cases involving expert evidence and cross jurisdiction co-ordination with an emphasis on technical and parallel issues. Tony ha...
James established JCL in 1992 as a specialist practice in commercial litigation and insolvency. Driven by a desire to achieve positive outcomes for his clients, James’ focus has always been on effective and efficient problem resolution. By establishing his own firm, James has also pursued his desire to help younger lawyers learn the art of law and problem solving. James has a broad range of legal experience, with extensive experience in commercial litigation and insolvency. He has acted...
Andrew has more than 20 years' experience in the construction and engineering matters, both in Australia and in the United Kingdom, and advises principals, contractors, sub-contractors, engineers, architects and other consultants. Andrew leads a pre-eminent Construction team in Queensland consisting of 12 construction lawyers regarded as leading advisers to the industry, particularly in relation to the adjudication process under the Building Industry Fairness (Security of Payment) Act 2017 (Q...
Bridget Wall is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Legal Malpractice Litigation and Professional Malpractice Litigation. Bridget, who practices law in Brisbane, Australia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bridget is held by other top lawyers in the same geographic and legal practice area.
Philip has over 30 years' experience practicing in business, commercial, and corporate law. Philip's range of industry experience includes agribusiness (private sector and public sector), mining services, large commercial and residential property development projects, acquisitions and sales, manufacturing, food service, medical practices, wills, and estates. Philip's areas of expertise are: Corporate acquisitions - company and business acquisitions, mergers, buy outs, and joint ventures. Corp...
Committed to helping his clients manage their risks and solve problems, Andrew specialises in all areas of construction law. He has worked on both transactional and disputed matters concerning the engineering, procurement, construction and operation of major projects across Australia and internationally. Andrew has advised in both private practice and in-house for some of Australia’s largest construction and engineering companies and understands the commercial and technical drivers in t...
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.
Build Your Legal Practice with Effective Online Networking
by Jamilla Tabbara
How thoughtful online networking supports sustained legal practice growth.
Blogging for Law Firms: Turning Content into Client Connections
by Jamilla Tabbara
How law firms use blogs to earn trust and win clients.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
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