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Mellor Olsson Lawyers
Callen Bubner cover
Callen Bubner

Callen Bubner

Partner Mellor Olsson Lawyers

Adelaide, SA
Contact us

About Callen

Callen Bubner, a partner at Mellor Olsson, brings over a decade of legal experience to his role. Since joining the firm in 2014, Callen has been dedicated to delivering exceptional legal services to the Clare community and its surroundings, also overseeing the daily management of the Clare office. His practice is wide-ranging, encompassing business succession, restructuring, property transactions, and conveyancing. Callen has developed a significant practice in Wills and estates, providing valuable advice on critical documents such as Wills, Testamentary Trusts, Powers of Attorney, and Advance Care Directives, as well as managing estate administration. He is highly regarded for his work with clients in the agricultural sector, including farmers and viticulturists, and caters to local small to medium-sized businesses. Recognising the increasing demand for renewable energy, Callen advises landowners on legal agreements related to wind and solar farms. Hailing from rural Eyre Peninsula, he has chosen to practise law in regional areas, understanding the importance of community involvement and extending his expertise to local not-for-profit and sporting groups. Callen regularly visits Burra, Kadina, and Riverton to assist residents with their legal requirements. His career commenced with roles at Tindall Gask Bentley Lawyers and Nicholls Gervasi, and he gained early experience at Lawson Smith Lawyers. Callen holds a Bachelor of Laws and Legal Practice alongside a Bachelor of Arts from Flinders University.

Practice areas

Commercial Law
Estate Planning
Property Law

Resume

Experience

Partner

Partner

Mellor Olsson

Jul 2023 - Present • 3 years 3 months

Lawyer

Lawyer

Mellor Olsson

Sep 2014 - Present • 12 years 1 month

Associate

Associate

Tindall Gask Bentley Lawyers

Jan 2010 - Jan 2014 • 4 years

Lawyer

Lawyer

Nicholls Gervasi

Jan 2009 - Jan 2010 • 1 year

Placement

Placement

Lawson Smith Lawyers

Jan 2009 - Present • 17 years 9 months

Education

Bachelor of Laws and Legal Practice and Bachelor of Arts

Bachelor of Laws and Legal Practice and Bachelor of Arts

Flinders University

2005 - 2009

Contact information

Adelaide, SA

Level 6, 89 Pirie Street, Adelaide, SAWebsite

Practice certificate

Name
Callen Bubner
Date of admission
2010
Certification type
A

Last checked: 25 Feb 2026 • Checked with Law Society of South Australia

Practice areas

Commercial Law
  • Farm Succession Planning
  • Trusts
Estate Planning
  • Estate Administration
  • Power of Attorney
  • Wills and Estates
Property Law
  • Conveyancing