Mr Garrett Breen > William Fry > Dublin, Ireland > Lawyer Profile

William Fry

Work Department

Litigation & Dispute Resolution.


Garrett Breen is a Partner and Head of William Fry’s Litigation & Dispute Resolution Department, specializing in commercial and regulatory litigation as well as contentious intellectual property issues. He has extensive experience of the Commercial Division of the High Court and various Tribunals of Enquiry, and has prosecuted cases before the European Court of Justice. He has advised sector-specific regulators in Ireland and internationally. He also advises auditors and tax advisors on their statutory obligations and decision-making processes. Garrett has run many anti-counterfeiting campaigns for multinational brand holders. He also advises financial services firms who become subject to the Administrative Sanctions Procedures of the Central Bank.

Lawyer Rankings

Ireland > White-collar crime

William Fry acts for clients facing challenging allegations of white-collar crime including fraud, insider dealing, data breaches and money laundering. The team is a popular choice for clients from the the financial services industry. The practice is led by Owen O’Sullivan, who also leads the firm’s dispute resolution practice. Other key partners in the team include Lisa Carty, whose experience in advising financial sector clients includes assisting companies involved in a parliamentary banking inquiry. Garrett Breen is currently involved in a number of cross-border issues and Paul Convery is ‘innovative and practical’. Laura Murdock was promoted to partner in 2020.

Ireland > Telecoms

William Fry‘s telecoms work spans the full spectrum of matters in this sector, with recent work including acting for both ComReg and private telecoms companies in litigation, advising companies on commercial agreements for telecoms infrastructure, and handling M&A transactions in the sector. Claire Waterson leads the team. ‘Canny litigator’ Garrett Breen handles telecoms disputes and senior associate Sarah Lynam stands out for her work on regulatory matters.

Ireland > Public sector

William Fry is particularly experienced in the financing and procurement of major public sector infrastructure projects, as well as advising on state aid, regulatory enforcement and public investigations. The team acts for government departments, local authorities and a number of financial bodies operating in the public sector. The practice is led by Claire Waterson, who specialises in competition, state aid and telecoms regulatory matters. Other key contacts include public sector employment expert Alicia Compton; Garrett Breen, who is experienced in regulatory litigation; and projects and construction head Jarleth Heneghan, who specialises in IT infrastructure.

Ireland > Dispute resolution

(Hall of Fame)

Garrett BreenWilliam Fry

William Fry‘s dispute resolution team handles a varied range of matters including breaches of contracts, professional negligence claims, regulatory issues, and contentious insolvencies. Practice head Owen O’Sullivan is a ‘great litigation tactician’ while Garrett Breen has represented clients before the Commercial Court and the Court of Justice of the European Union. Lisa Carty has a focus on disputes in the financial services sector, and Paul Convery‘s practice includes financial and insurance disputes. Laura Murdock is also noted.