Brendan O'Brien

Tom Brennan SC specialises in conducting major disputes. Recent disputes conducted by him include: concerning claims to foreign state immunity in civil aviation regulatory, commercial, insurance and leasing disputes; disputes with Australian federal government regulatory agencies including the Australian Competition and Consumer Commission, the Australian Securities and Investments Commission, the Australian Communications and Media Authority, the Australian Pesticides and Veterinary Medicine...

Marion is the recipient of numerous peer accolades including being repeatedly featured as one of Australia’s leading Trade Mark Law Practitioners in the Managing Intellectual Property’s Expert Guide and as an ‘IP Star’. She is regularly listed by Best Lawyers as one of ‘Australia’s Top Lawyers’ in Intellectual Property, as one of Asia Law’s leading lawyers, among the worlds leading practitioners in the Expert Guides: Trade Marks edition, and Asi...

He is a member of the International Academy of Estate and Trust Law, the Law Council of Australia Tax Committee, the Gunn Club and the Challis Tax Discussion Groups comprising Australia's leading taxation advisers.

Paul Kozub is a lawyer recognized by Best Lawyers in the practice areas of Insurance Law, Personal Injury Litigation, Product Liability Litigation and Professional Malpractice Litigation. Paul practices law in Sydney, Australia Best Lawyers has recognized Paul Kozub 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 Paul Kozub is held by other lawy...

Marlia is an experienced media, entertainment, intellectual property, online safety and privacy lawyer, who advises media organisations, content creators, digital platforms, corporations and government departments on matters relating to defamation, pre-publication advice, suppression orders, copyright and trade marks, advertising and marketing, online safety and privacy, drawing on both top-tier private practice and senior in-house counsel experience. She acts for Australia’s major medi...

Zara has practised insurance law and litigation in NSW for over 20 years. Before joining Holman Webb as Special Counsel in 2010 Zara was Special Counsel at Henry Davis York. Zara is experienced in a broad range of insurance practice areas including medical negligence, coronial inquiries, administrative review and disciplinary proceedings, injury liability, property and commercial claims, marine insurance and defamation. Her current focus is in professional indemnity, medical negligence and di...

Bill Madden is a lawyer recognized by Best Lawyers in the practice areas of Medical Negligence and Personal Injury Litigation. Bill practices law in Sydney, Australia Best Lawyers has recognized Bill Madden since 2026. 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 Bill Madden is held by other lawyers.

Imtiaz has a broad practice, including in the areas of commercial and corporations law, equity, competition law, product liability and insolvency law. He has appeared in the High Court, Federal Court and State Supreme Courts, including in a number of significant commercial and class action proceedings. He has acted for investment and retail banks, publicly listed and multi-national corporations, regulators and government instrumentalities. Imtiaz was called to the Bar in 2010 and appointed Se...

Alicia Mataere is a lawyer recognized by Best Lawyers in the practice area of Labour and Employment Law. Alicia practices law in Sydney, Australia Best Lawyers has recognized Alicia Mataere 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 Alicia Mataere is held by other lawyers.

Rohan is a partner in our Sydney office and leads Mills Oakley’s Government and Administrative Law team. Rohan is an experienced solicitor in government and public and administrative law. He has over 20 years’ experience in advising and representing Commonwealth officers, Departments and agencies on sound decision-making procedures, merits and judicial review litigation, statutory interpretation, policy development and implementation and access to information. Rohan is also very e...