Conor O’Leary
Mason Hayes & Curran LLPThe investigations and white-collar crime team at Mason Hayes & Curran LLP is sought after by a range of clients, with particular strength in the technology sector, where it assists IT corporates with regulatory investigations and those conducted by the Data Protection Commission. The practice is led by Liam Guidera, who handles a variety of fraud and corporate misconduct matters and investigations. Peter Johnston and Colin Monaghan work with domestic and international clients on contentious regulatory matters. Conor O’Leary is well-known for handling fraud-related affairs for clients from the financial services sector, and Shane Reynolds has built a strong reputation for representing local councils and state bodies in regulatory proceedings before all levels of Irish courts.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The team's key strength is the ability to distil complex legal issues into comprehendible advice.’
- ‘Shane Reynolds stands out. He has vast experience as a criminal practitioner and provides insightful advice to clients with great clarity and empathy in complex legal cases.’
- ‘The Mason Hayes & Curran LLP is highly experienced in Ireland. They have a very sophisticated level of understanding of the Irish and EU regulatory framework for industry and strong insight into trends in white-collar crime, anti-money laundering, and regulatory offences. The team is very responsive to client needs, well-resourced and highly efficient in delivering quality legal services.’
- ‘I have worked with several partners in Mason Hayes & Curran LLP, including most recently Liam Guidera. He is very personable, client-focused, and cares about customer outcomes. He is committed to delivering high-quality legal services which respond to client needs. He is a highly efficient manager of complex litigation projects and works very effectively within litigation teams to maintain excellent working dynamics.’
- ‘The MHC team is peerless in its expertise. It leaves no stone unturned in providing a blue-chip service to its clients. Its people are thorough, methodical, reliable and diligent. But above all, the MHC team radiates talent.’
- ‘Liam Guidera is an expert tactician. He is exceptionally calm in the face of adversity and always measured and reassuring in a crisis. He is one of the most highly respected litigators in the Irish market who has spent his career acting for many of the biggest names in the jurisdiction. Conor O’Leary is renowned for his mastery of detail and commitment to his clients. He gets on top of complicated problems quickly and expertly navigates the most challenging of situations. A rising star.’
- ‘Partner-led approach providing expertise, responsiveness and a thoroughly pragmatic approach throughout.’
- ‘Pragmatism, proactive, deep knowledge and understanding and timely response.’
Key clients
- Banque National de Paris Paribas
- Meta
- Portakabin UK Ltd.
- Impedans
- International Transport Workers’ Federation
- Central Bank of Ireland
- Allied Irish Banks plc
- Bank of Ireland
- Health Service Executive
- Gas Networks Ireland
- Kilkenny County Council
- Commission for Regulation of Utilities
- Child and Family Agency (TUSLA)
- UBIL (a division of NatWest)
- Waterford City and Waterford County Councils
Work highlights
- Represented Meta in multiple complex landmark DPC investigations and Irish and General Court of the European Union proceedings.
- Represented a number of witnesses, including the Irish Prime Minister (Taoiseach), in the Siteserv Commission of Investigation established in June 2015.
- Represented the International Transport Workers’ Federation in allegations of human trafficking in the Irish fishing industry.
Lawyers
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Liam Guidera
Mason Hayes & Curran LLPPractice head
The lawyer(s) leading their teams.
Liam Guidera