Mark O'Brien
About Mark O'Brien
Mark O'Brien is a lawyer based in Sydney, AU and has been recognized in The Best Lawyers in Australia™ since 2022. Mark O'Brien is recognized in the following practice area:
- Sydney, Australia
- Defamation and Media Law
Current Firm: Mark O'Brien Legal
Location: Sydney, AU
It takes just a few minutes to optimize your profile for prospective clients and lawyers ready to refer.
Log in to your account or continue as a guest to view annual subscription pricing.
Nearby Lawyers
Samantha regularly acts for private and public hospital operators, Local Health Districts, not-for-profit organisations, aged care and retirement village operators and Primary Health Networks. Her practice is concentrated in the health, aged care, retirement villages and not-for-profit sectors. Samantha advises on acquisitions and disposals, corporate restructures, commercial arrangements, Corporations Act and ACNC compliance. She advises on governance frameworks, director duties and regulato...
Katherine Czoch is a lawyer recognized by Best Lawyers in the practice areas of Information Technology Law, Insurance Law, Litigation and Professional Malpractice Litigation. Katherine practices law in Sydney, Australia Best Lawyers has recognized Katherine Czoch since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Katherine Czoch is held by other la...
Sasko is a Partner in Fragomen’s Sydney office. He has practiced in immigration law for over eighteen years, and has provided Australian immigration advice and assistance to Australian and international businesses across a wide range of industry sectors. His clients include world leaders in sectors such as ICT, FMCG, pharmaceutical, and management consulting. Sasko has also advised many start-up organizations with visa and immigration requirements. In addition, he has extensive experien...
Frank Hicks SC is a lawyer recognized by Best Lawyers in the practice areas of Construction / Infrastructure Law and Real Property Law. Frank practices law in Sydney, Australia Best Lawyers has recognized Frank Hicks SC since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Frank Hicks SC is held by other lawyers.
Michael was called to the Bar in 2005 and was appointed Senior Counsel in 2019. He has a wide practice, specialising in the areas of revenue law, commercial law, Corporations law and public law. Michael acts for a diverse range of corporate, private and government clients. He frequently appears both for and against the Commonwealth and its regulatory agencies, including the Commissioner of Taxation, the Australian Competition and Consumer Commission and the Australian Securities and Investmen...
Stephen came to the Bar in 1998, taking silk ten years later. His practice ranges across all areas of public law, with a particular emphasis on Constitutional Law, Judicial Review, International Law and Revenue Law. He also practices extensively in Native Title (in which field he is a co-author of the leading textbook) and in regulatory pricing and economic matters. Stephen has an extensive appellate practice, having appeared in the Full Court of the High Court in over 70 proceedings (not cou...
Tim Ainsworth is a lawyer recognized by Best Lawyers in the practice areas of Insurance Law and Personal Injury Litigation. Tim practices law in Sydney, Australia Best Lawyers has recognized Tim Ainsworth since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Tim Ainsworth is held by other lawyers.
Beth Jarman is a lawyer recognized by Best Lawyers in the practice area of Family Law. Beth practices law in Sydney, Australia Best Lawyers has recognized Beth Jarman since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Beth Jarman is held by other lawyers.
Matthew Robinson is a lawyer recognized by Best Lawyers in the practice area of Labour and Employment Law. Matthew practices law in Sydney, Australia Best Lawyers has recognized Matthew Robinson since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Matthew Robinson is held by other lawyers.
Tamara is briefed in a wide range of commercial and public law matters, with a focus on complex revenue, regulatory and planning and environment cases. She appears both led and unled, at first instance and on appeal in New South Wales and Federal courts, as well as in tribunals and inquiries. In addition to advocacy, Tamara’s practice involves opinion and advisory work for corporate and government clients. Tamara has been recognised in Doyle’s Guide as a leading junior counsel in ...
Explore and Learn
What AI Visibility Means for Lawyers
by Josh Rupall and Bryan Driscoll
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
The Best Lawyers in Canada 2027: Recognizing the Nation's Top Legal Talent
by Jamilla Tabbara
Honoring established leaders and rising practitioners across Canada's legal profession.
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
2027 Best Lawyers Awards: Honoring Excellence in the Legal Profession
by Jamilla Tabbara
Recognizing the outstanding attorneys leading top practice areas nationwide.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Rules on Gifting Money to Family: What to Know
by Bryan Driscoll
Generosity often runs ahead of paperwork. Here's how to give to loved ones without surprising the IRS, your estate plan or your relationships.