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Sun & Co Lawyers
William Sun cover
William Sun

William Sun

Founding Partner, Legal Practitioner Director Sun & Co Lawyers

Mansfield, QLD
Contact us

About William

William Sun serves as the Founding Partner and Legal Practitioner Director at Sun & Co Lawyers, demonstrating a robust legal expertise in property, finance, family, criminal, and litigation matters. With a career spanning over a decade, Mr Sun has distinguished himself through adept representation of both individuals and corporations across diverse legal issues. A graduate of the TC Beirne School of Law, he obtained a Bachelor of Laws in 2012, complemented by a Bachelor of Commerce with a focus on finance and a postgraduate diploma in legal practice from Queensland University of Technology. Mr Sun's experience includes drafting submissions for legal reforms and presenting complex legal issues at the Queensland Law Society symposium. His practice areas encompass civil litigation and appeals, criminal law, family law, employment law, domestic violence and youth justice, and property law. Admitted to the Supreme Court of Queensland in 2012 and the High Court of Australia in 2013, he regularly represents clients across various state and federal jurisdictions. His research interests lie in comparative law, competition law, constitutional law, jurisprudence, commercial arbitration, and moral philosophy. Recognised in the Career Mentor Scheme by Queensland University of Technology in 2015, Mr Sun is affiliated with the Queensland Law Society and accredited by the Legal Practitioners Admissions Board. His professional journey includes significant roles at Aston Lawyers ILP and Yong Lawyers ILP, as well as serving as in-house counsel at the Yong Group of Companies, showcasing a comprehensive legal acumen and leadership within the legal profession.

Practice areas

Criminal & Traffic
Employment Law
Family Law
Litigation & Disputes
Property Law

Resume

Experience

Legal Practitioner Director

Legal Practitioner Director

Sun & Co Lawyers

May 2016 - Present • 10 years 5 months

Legal Practitioner Managing Director

Legal Practitioner Managing Director

Aston Lawyers ILP

Feb 2016 - May 2016 • 3 months

Legal Practitioner Director

Legal Practitioner Director

Yong Lawyers ILP

Oct 2014 - May 2016 • 1 year 7 months

In House Counsel

In House Counsel

Yong Group of Companies

Sep 2014 - Oct 2014 • 1 month

Education

Queensland Law Society

GradDipLP

GradDipLP

QUT (Queensland University of Technology)

Bachelor of Laws (LL.B.)

Bachelor of Laws (LL.B.)

The University of Queensland

2012

Bachelor of Commerce (BCom), Finance

Bachelor of Commerce (BCom), Finance

The University of Queensland

2012

Awards

2015

Career Mentor Scheme

Queensland University of Technology

Contact information

Mansfield, QLD

Upper Mount Gravatt, Mansfield, QLDWebsite

Practice certificate

Name
William Sun
Date of admission
2012
Specialisations
Family Law, Family - Domestic Violence, Workplace Relations, Employment and Safety, Criminal Law
Certification type
Unrestricted Principal
Region
QLD

Last checked: 3 Jun 2026 • Checked with Queensland Law Society

Practice areas

Criminal & Traffic
  • Criminal Law
Employment Law
    Family Law
      Litigation & Disputes
        Property Law