Holly commenced her legal career in 1996  in insurance litigation before moving to Western Australia to expand her  knowledge in the area of commercial litigation. She then returned to Adelaide where she continued to broaden her understanding of litigation matters including not only commercial disputes, but also defamation, employment and industrial and personal injury matters.

Holly was given the opportunity in 2010 to work as in-house counsel for a national insurance company acting for medical practitioners in the areas of medical defence, personal injury litigation and coronial matters. This experience broadened her horizons not only from a legal perspective but from a management perspective as she managed the Adelaide office and was responsible for all legal matters, South Australian legal updates and extensive internal reporting.

Her broad and valuable experience over a wide range of legal matters and management experience, together with a  comprehensive network enabled her to establish her own firm Grace Solicitors in 2012 which she operated for over four years. Her clients some of which have been with her for years followed her across to Johnston Withers in 2017.

She continues to act for a wide range of clients including private individuals and corporate entities  across a wide range of jurisdictions including the High Court of Australia, Supreme Court of South Australia , South Australian Employment Tribunal, Family Court of Australia, Medical Board of Australia and Guardianship Board of South Australia. Holly also assists the Law School of Flinders University  with examination and assignment papers and tutoring when required.

Holly prides herself on giving her clients top priority, valuing their individual requirements and their pockets.

Outside of law, Holly is keen on sports, including, swimming, tennis and skiing and will take any opportunity to be outdoors.


  • Bachelor of Arts Honors Degree
  • Bachelor of Laws Degree
  • Graduate Certificate in Legal Practice


  • Law Society of South Australia
  • Industrial Relations Society of South Australia
  • Propel SA Board Member (formerly Eastside Business Enterprise Centre)
  • Law School, Flinders University of South Australia

Favourite Quote

  • Success is the result of hard work plus a little luck along the way!

Articles and Videos by Holly Gardner

Casual Employees May Not Be So Casual – Senior Lawyer, Holly Gardner 2019

Do you employee casual workers? In this interview with Chris Carpenter from Hills Radio 88.9FM, Johnston Withers Lawyers, Senior Lawyer, Holly Gardner talks about a decision upheld by the Full Court of the Federal Court that a casual worker described as such but working a regular roster is a permanent employee. Accordingly the worker is entitled to annual leave under the Fair Work Act 2009 (Cth) and under the enterprise agreement. Just because an employee is described as a casual worker does not mean the employee will necessarily be a casual worker.