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William Cotsis has practised law for over fourteen years, with a strong emphasis on commercial and domestic building disputes. Since 2003, he has developed considerable experience in procedures under the Building and Construction Industry Security of Payment Act, guiding clients through complex legal processes to achieve favourable and cost-effective outcomes. His practice spans a variety of courts and tribunals, including the Federal Court, Supreme Court (with experience in the Court of Appeal), District Court, Local Court, and the NSW Civil and Administrative Tribunal. William’s comprehensive approach ensures that clients receive informed and strategic advice tailored to their specific circumstances.
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Solicitor
William Cotsis & Associates
Mar 2004 - Present • 22 years 8 months
Solicitor
Scara Trimarchi Solicitors
Mar 2001 - Mar 2004 • 3 years
Solicitor
Marsdens Law Group
Jun 1994 - Oct 1997 • 3 years 4 months
B.EcLLB, Economics & Law
University of Sydney
1986 - 1993
Last checked: 15 May 2026 • Checked with The Law Society of NSW
