Declan is the Managing Partner of Mason Hayes & Curran. His personal expertise is in the resolution of business disputes and the management of insolvency risk. He focuses on advising on disputes and investigations with significant reputational and financial consequences for the protagonists and has acted in many high-value matters, commonly with an international component.
He advises regularly regarding warranty claims flowing from corporate transactions, claims against institutional investment advisors, claims in the financial services sector, shareholder and boardroom disputes and agency matters.
Declan has also represented both plaintiffs and defendants in relation to negligence claims involving professionals such as insurance brokers, accountants, solicitors and investment advisers. He has also acted in property related disputes, fraud-related litigation and in a number of disputes involving the application of EU regulations and directives in Ireland. He has represented Tribunals of Inquiry established by the State in proceedings taken against the Tribunals by persons affected by their actions.
Declan also represents stakeholders, most commonly financial institutions, in corporate insolvency matters including consensual restructurings, examinerships, receiverships, schemes of arrangement and liquidations. Allied to this practice, he advises boards and individual officers regarding the management of insolvency risks.
Representing majority shareholders in multi-faceted shareholder dispute in substantial Irish corporate entity.
Acting for Facebook in legal proceedings commenced by the Irish Data Protection Commissioner in the High Court of Ireland asking the Irish Court to seek a preliminary reference ruling from the Court of Justice of the European Union (“CJEU”) on the validity of the EU Commission decisions which permit data transfers from the EU to the United States pursuant to standard contractual clauses.
Representing the Tribunal of Inquiry into certain Payments to Politicians and Related Matters (The Moriarty Tribunal) in a series of proceedings taken against it by Denis O’Brien, Dermot Desmond and others.
Representing Eversheds in a dispute against Dunnes Stores.
Declan has a “wealth of experience under his belt; he knows how to read a situation and find the right solution." He has a formidable reputation for dispute resolution matters.
Dispute Resolution: “Very sharp, he is the standard all lawyers should aspire to.”
Insolvency & Restructuring: "A good operator, who is efficient."
"Always two steps ahead"
Declan is recommended as one of the world's leading litigators.
"Always looking out for the best interests of the client,"
"Superb - excellent in negotiations, commercially aware, and very practical."
Declan regularly speaks on a variety of management, litigation and insolvency related topics.
International Bar Association
The Irish Society of Insolvency Practitioners
University College Dublin (BCL)