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Conor O'Leary promoted to partner at Mason Hayes & Curran

/ 2nd July 2025 /
Galen English

Business law firm Mason Hayes & Curran has announced the promotion of Conor O’Leary to partner in its dispute resolution team.

O'Leary is a commercial litigator with a focus on complex investigations, often involving cybercrime or regulatory action.

He holds degrees from UCD (BCL) and UCC (LLM), and a diploma in commercial litigation from the Law Society of Ireland. He is also a member of the International Association of Young Lawyers.

The firm said he has acted in some of the highest-profile commercial disputes to come before the courts in recent years, and that "he takes a strategic approach, offering advice that helps clients resolve issues decisively and safeguard their long-term position."

“I am delighted to have been asked to join the partnership at Mason Hayes & Curran," said O'Leary. "This would not have been possible without the unwavering support of my fantastic colleagues and clients.

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"My focus has always been on providing clear, considered advice and managing disputes in a way that reflects our clients' priorities, and I look forward to continuing to do so in this new role.”

Maurice Phelan and Gerard Kelly, co-heads of the dispute resolution team at Mason Hayes & Curran, welcomed the appointment.

“Conor’s practice is built on sound judgement and a measured approach. His promotion reflects the leadership he brings to difficult disputes and the confidence clients place in his advice," said Phelan.

Kelly added: “Our Dispute Resolution team is among the most experienced in Ireland, advising a broad range of domestic and international clients. Conor’s appointment further strengthens our capacity to deliver results in high-stakes litigation, where clarity and speed are critical.”

(l-r) Conor O’Leary with Gerard Kelly and Maurice Phelan, Mason Hayes & Curran

The law firm last month appointed Avril Daly as Of Counsel with its employment law team, Ursula McMahon as charity law partner, and Andrew Gill as partner in DCM, structured finance and derivatives.

Mason Hayes & Curran found this week that 31 per cent of Irish financial services firms are not yet prepared to implement the Central Bank's revised Consumer Protection Code.

Photo: Conor O'Leary. (Pic: Supplied)

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