William Marshall

William MarshallWilliam Marshall

William accepts briefs in all areas of infrastructure and construction law.

Prior to being called to the bar, William was a Partner in the Construction Advisory and Disputes team at Pinsent Masons in Sydney.  As a Partner, William regularly provided strategic advice on major infrastructure and construction projects and disputes, and has appeared in NSW courts, in expert determinations, arbitrations, mediations and before Dispute Advisory Boards.

William has also worked as a solicitor and advocate in the Middle East and was a registered lawyer with the Dubai Legal Affairs Department.  He has advised on, and appeared in, major international arbitrations in numerous jurisdictions under the ICC Rules, the ADCCAC Rules, the DIAC Rules, and in ad hoc arbitrations under the Singapore Arbitration Act and the UNCITRAL Rules.

William holds a Masters in Construction Law from the University of Melbourne (Hons 1 equivalent), as well as a Bachelor of Laws and Bachelor of Media from Macquarie University.  William earned academic prizes at both undergraduate and postgraduate level. William has also studied the Harvard model of negotiation at Harvard Law School.

William was recognised by Doyle’s Guide as a Leading Construction and Infrastructure Litigation Lawyer in 2019 and 2020, and as a leading barrister from 2021.

Most recently William was included in the inaugural Best Lawyers: Ones to Watch in Australia 2024 for Construction/Infrastructure law.


Admissions and Appointments
  • Admitted to the Bar: 2020
  • Registered as lawyer by the Dubai Legal Affairs Department: 2013 - 2016
  • Admitted as a Legal Practitioner: 2006
  • MConstrLaw (The University of Melbourne): 2014
  • BMediaLLB (Macquarie University): 2006
Practice Areas
Bankruptcy & Insolvency
Building & Construction
Commercial Law
Competition & Consumer Law
Insurance & Re-Insurance
International Law
Real Property and Strata Disputes