Greg was admitted in NSW as a solicitor in 1997 and as a barrister in 2012. He has a Bachelor of Laws (Hons), a Master of Laws and a Bachelor of Economics from the University of Sydney.
Greg has a diverse practice at the Bar with his main areas of expertise being taxation, commercial and criminal law.
Greg has advised and appeared in local and international taxation matters, including Project Wickenby cases, objections, disputes, recovery proceedings and appeals up to $30m. He has appeared in various jurisdictions from the Local Court and Tribunals to the High Court of Australia.
He has acted as a Crown Prosecutor, in particular in fraud cases. He has also acted pro bono in migration and criminal cases.
Before coming to the Bar, Greg was a tax consultant at Arthur Andersen, manager in Ernst & Young's taxation, banking & finance division, assistant fund manager to unlisted wholesale real estate equity funds at Macquarie Bank and solicitor at Warren McKeon Dickson.
Greg is a Chartered Tax Advisor, Tax Institute of Australia, associate member of the NSW Law Society and member of the Commonwealth Director of Public Prosecutions External Junior Counsel Panel.
He serves as a member of the Professional Conduct Committee of the NSW Bar Association and director of Ground Floor Wentworth Chambers. He has previously served as Bar Councillor, chair of the New Barristers’ Committee, member of the Finance Investment and Audit Committee and Education Committee of the NSW Bar Association. He has also served as a member of the Law Council of Australia Young Lawyers Committee.
Peter Greensill Family Co Pty Ltd (trustee) v Commissioner of Taxation  FCAFC 99
Peter Greensill Family Co Pty Ltd (trustee) v Commissioner of Taxation  FCA 559
Macquarie International Health Clinic Pty Ltd v Sydney Local Health District  NSWSC 1587