Geoffrey Diehm KC

Glenn O'Brien is a top attorney recognized by Best Lawyers in the practice area(s) of Trade Law. Glenn, who practices law in Brisbane, Australia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Glenn is held by other top lawyers in the same geographic and legal practice area.

Greg Cahill is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Law, Mergers and Acquisitions Law, Tax Law and Trusts and Estates. Greg, who practices law in Brisbane, Australia, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Greg is held by other top lawyers in the same geographic and legal practice area.

Ben Cohen is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Ethics and Professional Responsibility Practice, Legal Malpractice Litigation, Litigation and Professional Malpractice Litigation. Ben, who practices law in Brisbane, Australia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ben is held by other top lawyers in the same geographic and legal practice...

Laura Gahan is a top attorney recognized by Best Lawyers in the practice area(s) of Leasing Law and Real Property Law. Laura, who practices law in Brisbane, Australia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laura is held by other top lawyers in the same geographic and legal practice area.

Don is one of the senior partners in HopgoodGanim Lawyers' property practice and leads our work across residential and mixed-use developments including community title projects and other commercial property transactions. Don’s experience includes acting for property developers, banks and managers such as Aria Property Group, Gurner, Sunland Group, St George Bank and Balmain Asset Management in acquiring development sites, establishing community title schemes and selling proposed lots. D...

Sean McMahon is a top attorney recognized by Best Lawyers in the practice area(s) of Funds Management and Investment Funds. Sean, who practices law in Brisbane, Australia, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean is held by other top lawyers in the same geographic and legal practice area.

Sarah Macoun is a Brisbane-based lawyer with HopgoodGanim, where she focuses on government practice, land use and zoning law, and planning and environmental law. She works with clients navigating the regulatory frameworks that shape development and infrastructure across Queensland, offering practical guidance grounded in an understanding of how policy and planning intersect. Her work regularly involves advising on development approvals, planning schemes and environmental assessments, as well ...

Michele Muscillo is a Brisbane-based lawyer at HopgoodGanim, where he advises clients on a broad range of commercial and corporate matters. His work focuses on helping businesses navigate transactions, governance issues and growth opportunities across diverse industries. Michele is known for providing clear and practical advice that aligns legal strategy with commercial objectives. Michele’s practice spans commercial law, corporate law, equity capital markets, mergers and acquisitions a...

Lyndon is a qualified lawyer, chartered accountant and chartered tax adviser who advises on GST, payroll tax, land tax, income tax, capital gains tax and the establishment of private ancillary foundations. His diverse experience in dealing with the Australian Taxation Office (ATO) from an accounting and a legal perspective has given him a valuable insight into the motivation of agencies. Lyndon has acted for clients from diverse backgrounds in a wide range of industries, including the non-pro...

Andrew is a Partner in HopgoodGanim Lawyers’ Workplace and Employment practice. Andrew advises clients on all aspects of workplace law, equal opportunity and discrimination law, safety and privacy. From front-end bargaining and agreement composition to dispute management, Andrew has extensive experience advising across a broad range of sectors including resources and energy, manufacturing, health and hospitality. He is particularly skilled in providing strategic employment law advisory ...