Callum is a specialist commercial litigator with experience managing complex, high-stakes disputes. He represents clients that include high net worth individuals, corporates, SMEs and local councils. His practice covers contract disputes, negligence claims, company and shareholder actions, insolvency and enforcement proceedings, cross-border issues, and cases involving trusts and estates.
Before joining Wilson Harle in 2021, Callum was part of the litigation team at a prominent provincial law firm. There he gained practical courtroom advocacy experience, regularly appearing for clients in both the District Court and High Court.
Callum is known for his pragmatic approach and commitment to delivering results. He works closely with clients to understand their objectives. Through strategic planning and clear, practical advice, he ensures they are well-positioned throughout the litigation process.
Callum holds degrees in law and applied science from the University of Otago.
Acting for a Singapore-based cryptocurrency issuer in an application to strike out a cause of action alleging breach of an investment contract, on the grounds that the claim was precluded by a prior settlement agreement (MB Technology Limited v Orbis Blockchain Technologies Limited [2022] NZHC 1257; MB Technology Limited v Orbis Blockchain Technologies Limited [2022] NZHC 2408; Ecomi Technology Pte Limited v MB Technology Limited [2024] NZCA 47).
Acting for a hire company in a claim for rectification of a mining equipment hire contract.
Acting for an Australian distributor in proceedings alleging breach of an exclusivity provision in a distribution contract.
Acting for a shareholder in a summary judgment application seeking a declaration that company shares were held on bare trust (So v Shi [2022] NZHC 214; So v Shi [2023] NZHC 2030).
Acting for multinational banks and other commercial parties in numerous summary judgment, liquidation and bankruptcy applications.
Acting for overseas parties, including law firms, enforcing foreign judgments and arbitral awards in New Zealand.
Acting for the executors and trustees of the estate of Michael Erceg, opposing a non-party discovery application seeking access to estate and trust documents (Sain v Erceg [2022] NZHC 1010).
Acting for trustees and beneficiaries in various trusts and estates matters, including defending and bringing applications to remove and replace trustees, solemn form probate applications, and family protection and testamentary promises claims.
Acting for Vodafone New Zealand Limited in complying with Harmful Digital Communications Act court orders.
Acting for Far North District Council in an application to remove a historical mortgage from council-owned land (Far North District Council [2021] NZHC 329).