
Mason Hayes & Curran LLP is a full-service law firm that has built a strong reputation for handling contentious and non-contentious matters. The team regularly assists clients with statutory and non-statutory public inquiries, advising public sector bodies on data privacy, governance, and regulatory issues encompassing licensing, compliance, investigations, and enforcement. Catherine Allen leads the public, regulatory and investigations team, and Brian Horkan heads the health and prosecutions practice. Other key practice members include Lisa Joyce, Aoiffe Moran and Laura Rattigan.
Legal 500 Editorial commentary
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Lisa Joyce
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Aoiffe Moran
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Laura Rattigan
Practice head
Catherine Allen; Brian Horkan
Other key lawyers
Lisa Joyce; Aoiffe Moran; Laura Rattigan
