Martin O'Connor

Stuart Simington is a lawyer recognized by Best Lawyers in the practice areas of Land Use and Zoning Law and Planning and Environmental Law. Stuart practices law in Sydney, Australia Best Lawyers has recognized Stuart Simington since 2021. 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 Stuart Simington is held by other lawyers.

Adam Casselden SC is a lawyer recognized by Best Lawyers in the practice areas of Sports Law and Transportation Law. Adam practices law in Sydney, Australia Best Lawyers has recognized Adam Casselden SC 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 Adam Casselden SC is held by other lawyers.

Luke Standen is a lawyer recognized by Best Lawyers in the practice areas of Commercial Law and Information Technology Law. Luke practices law in Sydney, Australia Best Lawyers has recognized Luke Standen since 2025. 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 Luke Standen is held by other lawyers.

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...

Since 1995 David Prince has practiced extensively in all areas of visa applications, merits review and judicial review. He has established a reputation for successfully solving difficult immigration cases and he is regularly consulted by barristers, solicitors and migration agents on complex issues of immigration law. David has been accredited as an immigration specialist by the Law Society of New South Wales since 2000. There are fewer than 60 accredited immigration solicitors practising in ...

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...

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...

John has over 20 years’ experience as a litigator specialising in all areas of insurance and has managed a significant number of large litigated matters. John is an Accredited Specialist in Commercial Litigation (Insurance) and leads our insurance team. He has acted in matters in all States of Australia. John is an experienced advocate, regularly appearing for clients in court and participates in alternative dispute resolution programs in those matters identified as unsuitable for litig...

Simon has practised as a barrister in Sydney since 2010 and was appointed Senior Counsel in 2024. He had previously worked in New York, taught at the University of Sydney Law School, and been an associate at the High Court of Australia. Simon’s practice includes commercial and corporate law, equity, insurance, professional indemnity, public law and trade practices. He has appeared in representative proceedings (for applicants and respondents), commissions of inquiry (as counsel assistin...

Steve Johns is a lawyer recognized by Best Lawyers in the practice areas of Commercial Law, Corporate Law and Mergers and Acquisitions Law. Steve practices law in Sydney, Australia Best Lawyers has recognized Steve Johns since 2014. 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 Steve Johns is held by other lawyers.