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Mark Hanna is the Principal of the firm and is recognised among his peers as a persuasive advocate known for innovative thinking. Clients appreciate his approachable and personable manner, noting his attentiveness and commitment to achieving favourable outcomes. Mark's legal experience spans several areas, with notable involvement in major cases. He acted as instructing solicitor in the landmark High Court case Kirk v Industrial Relations Commission; Kirk Group Holdings Pty Ltd v WorkCover Authority of New South Wales [2010] HCA 1, which has become a key precedent in Australian law and described as one of the most significant decisions in recent times. He also played an important briefing role in The Church of the New Faith v Pay Roll Tax Commissioner of Victoria, a High Court case that established the legal criteria for defining religious institutions in Australia. This decision has been influential internationally, cited in judgements across Europe, the United States and Commonwealth countries. Over the past decade, Mark has increasingly focused on matters involving family law, family provision and estate law, including litigation in these areas. He is regularly invited to present at legal conferences across Asia and was honoured to speak at the 2017 World Conference on Family Law and Children's Rights in Dublin, where he addressed surrogacy issues.
Tribunal Member
NSW Civil and Administrative Tribunal
Jan 2025 - Present • 1 year 10 months
Member, ACT Civil and Administrative Tribunal
Australian Capital Territory Civil and Administrative Tribunal
Nov 2022 - Present • 4 years
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Principal
Mark Hanna Lawyers
Jun 2012 - Present • 14 years 5 months
Solicitor, Family Law Litigation Section
NSW Legal Aid, Family Law Litigation Section
Sep 2011 - Mar 2012 • 6 months
Solicitor
Ron Clapham Solicitor
Aug 2010 - Sep 2011 • 1 year 1 month
Litigation specialist
David Lardner Lawyers
Feb 2009 - Aug 2010 • 1 year 6 months
Practical legal Training
College of Law Sydney

Bachelor of Laws (LL.B.)
University of Sydney

Master of Media Practice
University of Sydney

Law (scholarship), Chinese Corporate Law, Environmental Law, Islamic Law
National University of Singapore
Last checked: 15 May 2026 • Checked with The Law Society of NSW