Brian O'Callaghan

Hyans acts for Commonwealth, State and Territory government agencies and commercial clients on procurement, contracts and public law matters. Hyans advises on commercial contracts, corporate governance, statutory interpretation, legislative drafting, regulatory law, administrative law, privacy and FOI matters, and procurement and probity. His practice covers all aspects of government contracting from strategy and tender design through contract award and administration, as well as legal advice...

Paul acts for Commonwealth Government agencies, statutory authorities and private sector employers. Paul joined Thomsons in July 2025, bringing with him deep Commonwealth client relationships built over an extensive career. Paul’s practice spans all aspects of employment and industrial relations, WHS governance, administrative law and government procurement. He advises on enterprise bargaining, individual and collective workplace agreements, discrimination complaints, investigations of ...

Keith is a Director in the Estates and Estate Planning Section and brings more than 40 years’ experience in legal practice. An active member of the legal community in Canberra, he is regularly asked to lecture on various aspects of estate planning including charitable trusts, special disability trusts, succession planning, superannuation and family provision claims. He is a member of the Financial Planning Association Australia, a Member of the Society of Trust and Estate Practitioners ...

John is a leading Commercial lawyer in Canberra and is renowned for his expertise, professionalism and integrity. With more than 40 years experience, John’s extensive business acumen enables him to quickly identify clients’ issues and work towards commercial results. Over John’s many years in practice he has been a key advisor in many significant and high profile property transactions including commercial property sales and purchases, land releases, joint ventures, building ...

Bill has been a legal practitioner for over 30 years specialising in personal injury law including motor vehicle accidents and public liability, workers compensation, medical and dental negligence, and historical child sexual abuse cases. His practice also includes commercial litigation in the ACT courts involving insurance and professional indemnity issues, building and contract disputes, and employment matters. Bill’s straightforward manner complements his extensive experience and kno...

Nevin is a dispute resolution expert with over 30 years of legal experience. He specialises in government regulatory work and administrative decision making. He also has extensive experience in insurance backed litigation claims extending from professional indemnity – doctors, directors and lawyers to toxic torts, public liability, personal injury, aviation incidents and coronials. Nevin’s experience with government clients has provided him with insight to the various stakeholders...

Catherine is a Family Law lawyer based in Canberra with Parker Coles Curtis . She is known for her clear communication, practical guidance and strategic approach, helping clients navigate complex family law matters with confidence and clarity during challenging periods in their lives. As an Accredited Specialist in Family Law and an Independent Children’s Lawyer (ICL), Catherine regularly represents and supports children in family law proceedings, appearing in court and advocating for o...

Anthony Crowe is a lawyer recognized by Best Lawyers in the practice area of Insurance Law. Anthony practices law in Canberra, Australia Best Lawyers has recognized Anthony Crowe since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Anthony Crowe is held by other lawyers.

Lauren Armstrong is a lawyer recognized by Best Lawyers in the practice area of Insurance Law. Lauren practices law in Canberra, Australia Best Lawyers has recognized Lauren Armstrong since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Lauren Armstrong is held by other lawyers.

Matthew has over 18 years experience in insurance litigation and specialises in defending state statutory class and common law claims arising in the challenging Australian Capital Territory jurisdiction. He regularly assists insurers and self-insurers to liaise with the ACT regulator on issues concerning the ACT scheme. Matthew is highly experienced in the defence of state statutory classes litigation and uses his knowledge to assist clients with strategic claims management in order to achiev...