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White-collar crime

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Mason Hayes & Curran LLP

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Mason Hayes & Curran LLP’s team is experienced in managing a broad range of white-collar crime matters, with a strong track record of representing state agencies and regulators in inquiries and prosecutions. The team routinely advises public and private sector clients on internal risk management and investigations involving allegations of fraud, corporate wrongdoing, and cyberattacks. Liam Guidera heads the practice and is well-versed in handling fraud and corporate misconduct matters and investigations. Conor O’Leary has notable expertise in fraud-related issues and proceedings.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Well reasoned and experienced team.’
  • ‘Shane Reynolds is an exceptionally experienced and capable solicitor.’
  • ‘Liam Guidera is one of the most experienced solicitors in the market, with a wealth of experience. He can draw on the commercial litigation expertise of stars such as Colin Monaghan and Peter Johnston.’
  • ‘The firm is extremely adept and client-focused. The partners and all solicitors are very responsive and conscientious.’
  • ‘Liam Guidera is a unique asset, as he possesses expertise in several specialist areas. He is extremely dedicated to clients and can explain complicated legal concepts and procedures understandably. He is level-headed and a great strategic thinker.’
  • ‘I have worked with Liam Guidera, who is very able.’
  • ‘Expert knowledge of the subject matter. Pragmatic legal advice.’
  • ‘Receptive and collaborative. Liam Guidera is a leading expert in his field.’

Key clients

  • Irish Life Assurance Plc
  • Meta Platforms Ireland Limited
  • TikTok Technology Limited
  • WhatsApp Ireland Limited
  • Yahoo EMEA Limited
  • Indigo Telecom Group Limited
  • BNP Paribas
  • Portakabin
  • Trinity College Dublin
  • Aramark Plc
  • Football Association of Ireland

Work highlights

  • Represented IT giants such as Meta, TikTok, WhatsApp and Yahoo in unique and complex investigations and litigation in the Irish courts and the EU General Court.
  • Represented clients’ interests in sensitive corporate reputational controversies involving appearances before parliamentary committees, regulators and media inquiries.

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.
Conor O’Leary
Mason Hayes & Curran LLP
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head

The lawyer(s) leading their teams.

Liam Guidera

Other key lawyers

Colin Monaghan, Peter Johnston, Shane Reynolds, Conor O’Leary