Leighton O'Brien

Michael Astill is a lawyer recognized by Best Lawyers in the practice areas of Construction / Infrastructure Law, Government Practice, Litigation, Planning and Environmental Law and Real Property Law. Michael practices law in Sydney, Australia Best Lawyers has recognized Michael Astill since 2008. 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 Michael Asti...

Ron Kessels is a lawyer recognized by Best Lawyers in the practice area of Immigration Law. Ron practices law in Sydney, Australia Best Lawyers has recognized Ron Kessels since 2008. 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 Ron Kessels is held by other lawyers.

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...

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.

John was admitted as a solicitor in 2013 and called to the bar in 2023. He has a diverse practice across commercial, public, and criminal law. Before coming to the Bar, John was a Senior Associate in the litigation team at Arnold Bloch Leibler. He acted for companies and individuals on a wide range of commercial disputes, regulatory investigations and enforcement action, white collar criminal matters, and public inquiries. Prior to joining ABL in 2020, John was a senior solicitor at the North...

Brendan is an experienced major projects lawyer working in the area of planning, environment, mining and renewable energy. Brendan has acted for a range of resource clients, advising them on matters ranging from approvals for greenfield projects, climate change litigation, mining lease processes, native title and water licensing. Brendan’s practice covers energy and resources projects in both New South Wales and Queensland where he is currently acting in groundbreaking climate change li...

Chris Kinsella is recognised as one of Australia’s leading tax lawyers and has provided strategic tax advice to corporations, boards, business owners and the ATO for more than 35 years. Chris has a focus on tax risk and with managing tax audits and disputes with the Commissioner of Taxation. Chris has acted both for and against the Commissioner. Chris is accredited as a specialist in dispute resolution with the Law Society of New South Wales. He has been a member of the Number One Tax D...

Malcolm Wood is a lawyer recognized by Best Lawyers in the practice area of Insurance Law. Malcolm practices law in Sydney, Australia Best Lawyers has recognized Malcolm Wood 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 Malcolm Wood is held by other lawyers.

Marial Lewis is one of Australia's top immigration lawyers. She is an accredited specialist in Immigration Law by the Law Society of NSW as well as two times winner of the prestigious Lawyers Weekly 30 under 30 in 2021 and 2022 and the 2020 John Gibson Award - Young Migration Lawyer of the year by the Law Council of Australia. She was also named as a finalist in various national awards including, Partner of the year in migration and innovation, rising star of the year for the Australasian Law...

Joanne Kinslor is amongst Australia’s foremost immigration lawyers. She is known for both her extensive experience throughout the field of immigration law and her thought leadership. Her clients appreciate her dedication to addressing complex immigration issues and winning difficult cases. Joanne has been accredited as an immigration specialist by the Law Society of New South Wales since 2006. There are fewer than 60 accredited immigration solicitors in New South Wales. Joanne is an act...