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Norman Waterhouse
Marissa uses her wealth of knowledge and experience which she has developed over her career, both as solicitor and barrister, to provide sound and pragmatic legal advice and representation to achieve the best possible outcomes for her clients.

About Marissa

Marissa is a Principal and General Counsel in the firm’s Commercial and Taxation team and brings a wealth of knowledge in tax, banking and finance, regulatory litigation and compliance, insolvency and commercial law from her experience at ASIC, the ATO and in private practice.

Coming from the Independent Bar, Marissa has extensive advocacy and litigation experience, having represented individual, corporate and government clients in complex disputes across a range of tribunals and courts, including in the High Court. Whilst predominantly a leader of the Commercial and Taxation team, Marissa also provides advocacy support across the firm.

Her work at the ATO and ASIC involved dealing in a range of matters including complex taxation disputes and investigations and litigation of suspected breaches of consumer credit, financial services and corporations’ legislation across a number of areas including misleading and deceptive conduct, unconscionable conduct, fraud and breaches of directors' duties.

Having the unique experience of dealing with legal matters from both sides of the coin, it allows Marissa to understand the perspective and approach of regulators. She has the ability to guide clients with respect to their compliance obligations and to provide support with respect to investigations and litigation.

She also has a keen interest in other areas of law including employment, migration, native title, wills and estates.

She holds a Master of Laws specialising in Corporate Commercial and Taxation Law together with undergraduate degrees in commerce and law. Her experience working in the banking and finance industry complements her legal abilities.

She is a highly respected member of the legal profession and currently holds the positions of Vice – President of the Law Society of South Australia, President of the Women Lawyers Association of South Australia and sessional member of the South Australian Civil and Administrative Tribunal.

Marissa has been and remains passionate about sharing her knowledge and experience with others and is a strong advocate of ensuring greater access to justice in the community. She also teaches students of the Graduate Diploma of Legal Practice at the University of Adelaide in the areas of banking and finance and commercial law.


  • Federal taxes
  • Superannuation
  • Asset protection
  • Not for profits
  • Business structures and restructures
  • Estate and business succession planning and litigation
  • Taxation disputes (audit, litigation, criminal and tax debt recovery)
  • Inquiries, investigations and prosecutions
  • Corporations Act matters
  • Director and shareholder disputes
  • Consumer protection
  • Banking and finance
  • Regulatory litigation and compliance
  • Debt recovery and insolvency
  • Disciplinary and administrative law
  • Intellectual property and trademarks


  • Current Vice-President and council member of the Law Society of SA since 2017
  • Current President and committee member of the Women Lawyers Association of South Australia since 2014
  • Sessional Member of the South Australian Civil and Administrative Tribunal
  • Chair and member of the Women Lawyers Committee for the Law Society of SA Australia since 2014
  • Member of the Professional Standards Scheme Committee for the Law Society of SA since 2020
  • Fellow of the Tax Institute of Australia
  • Member of the Women’s Insolvency Network of SA

Marissa's Areas of Practice

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