Tim O'Callaghan

Jamie Ling is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation. Jamie, who practices law in Adelaide, Australia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jamie is held by other top lawyers in the same geographic and legal practice area.

Matthew has specialised in technology and corporate and commercial law since joining the firm in 2001. He is regularly retained to act on information technology, intellectual property, medical and biotechnology, franchising, competition and consumer, and privacy law matters. Matthew has a particular interest in the commercialisation and procurement of all kinds of technology and focuses on non-contentious commercial and transactional work. He also has broad-based experience in the effective n...

Alyce Ricciardi is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Law and Mergers and Acquisitions Law. Alyce, who practices law in Adelaide, Australia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alyce is held by other top lawyers in the same geographic and legal practice area.

Jamie Watts is the leader of Cowell Clarke’s Building, Construction and Infrastructure team, bringing nearly 30 years of experience to his market leading guidance and advice. With expertise ranging from the drafting of contracts to the settlement of disputes, Jamie’s understanding of the whole construction cycle allows him to identify and minimise risk from procurement to completion. Although the avoidance of future claims and disputes is Jamie’s primary goal, he has signifi...

John is a Special Counsel in the firm’s Insurance practice and is nationally recognised in the area of dust diseases litigation. John has over 15 years’ experience in insurance and civil litigation. John’s work involves complex legal, scientific and medical issues in the specialised field of toxic torts. He has extensive experience involving asbestos related claims, general insurance matters including property damage, negligence and motor vehicle insurance, public liability,...

Peter Leech is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Reorganization Law and Litigation. Peter, who practices law in Adelaide, Australia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter is held by other top lawyers in the same geographic and legal practice area.

Sam Richardson is a Director of Cowell Clarke’s Property team and advises on a variety of matters from purchase and sale of property to complex lease negotiations. Sam has acted for clients in the acquisition and disposal of property, as well as for developers on residential and mixed use developments. Sam is an active member of the Property Council of Australia and the Urban Development Institute of Australia where he sits on the community housing committee. Sam’s expertise has b...

Tom has expertise across the firm’s practice areas of property development, town planning, infrastructure and projects, pollution licensing and environmental approvals, water and natural resources, land valuation and compensation for compulsory acquisition, liquor licensing, real property and local government and administrative law. Having spent nearly 15 years practicing exclusively in these areas, Tom is widely recognised as a leader in the field. He has advised on a vast spectrum of ...

Stephen specialises in large and complex commercial disputes, and has extensive experience in managing large disputes which require a team-based approach across different jurisdictions. He liaises closely with his clients to achieve the most favourable and cost efficient outcome possible. Stephen’s litigation practice focuses on general corporate and commercial litigation in respect of a wide variety of contractual matters, including Competition and Consumer Act and Corporations law adv...

Rob Comazzetto is the Managing Director of Cowell Clarke and a Director in the firm’s Insolvency and Reconstruction team. Admitted as a lawyer for over 30 years, Rob has worked both in industry and legal practice and continues to sit on the board of several companies. The experience which Rob brings from being involved in commerce is reflected in his practical approach to issues and the often stressful situations faced by clients. He always focuses on finding a resolution that maximises...