Niall D. O’Murchadha

Niall D. O’Murchadha joined the firm in 2008 and became Of Counsel in 2016. Mr. O’Murchadha’s practice focuses on complex commercial litigation and white-collar criminal defense. His clients have ranged from large international corporations, to individual plaintiffs and defendants, to small and medium-sized businesses in the New York area. He has litigated a wide variety of commercial cases, including business disputes involving contract and fraud claims and enforcement of non-compete agreements; employment litigation; sports litigation; complex commercial real estate litigation; securities litigation; insurance litigation; and constitutional law litigation.

Mr. O’Murchadha has also represented clients in criminal investigations and civil proceedings brought by government agencies, including the New York State Attorney General’s Office, various United States Attorney’s Offices, the New York State Department of Human Rights, the New York City Department of Investigation, the New York City Department of Housing Preservation and Development, and the New York State Insurance Fund, as well as the United States Department of Justice, FERC, the SEC, the CFTC, and the Senate Permanent Subcommittee on Investigations.


  • Representing the New York State Banking Department in a dispute with the former Republic of Yugoslavia over the state’s regulatory authority to liquidate New York agencies of insolvent Yugoslavian banks;
  • Representing a Japanese drug manufacturer in a patent infringement action against generic manufacturers trying to market an acid reflux drug, which had U.S. sales of around $1 billion per year;
  • Representing plaintiffs and defendants in employment discrimination disputes and litigations, as well as in investigations by city and state agencies;
  • Representing a ground transportation company in litigation against a former franchisee to enforce a non-compete agreement;
  • Representing a Mexican boxer and boxing promoter in a Court of Arbitration for Sport arbitration against the World Boxing Council for failure to carry out anti-doping testing after a championship bout;
  • Representing a commercial tenant in a Yellowstone action against its landlord, which wanted to terminate its lease in order to raze the building and replace it with a new skyscraper;
  • Representing a delivery company in litigation with the State Insurance Fund over whether its drivers were employees or independent contractors;


  • Representing a large upstate medical practice in a two-year US Attorney’s Office investigation of health-care fraud perpetrated by a former shareholder;
  • Representing a major energy company in a DOJ and CFTC investigation into manipulation of the propane futures market;
  • Representing a Washington, D.C., bank in a Senate Permanent Subcommittee on Investigations inquiry into money laundering and USA PATRIOT Act violations;
  • Representing an international beverage distributor in an industry-wide investigation by the NYS Attorney General’s Office into spirits and wine distribution practices;
  • Representing two individuals whose company had managed a residential real estate portfolio facing criminal contempt charges brought by HPD; and
  • Representing individual witnesses in a number of regulatory and criminal investigations.

Mr. O’Murchadha received his A.B. from Princeton University in 1998 and his J.D. magna cum laude from Fordham Law School in 2003, where he was a member of the Law Review and won the Fordham Law School Prize, the Calamari-Perillo Prize, and the Henrietta R. Metcalf Award. Before joining Schlam Stone & Dolan, Mr. O’Murchadha practiced with Sullivan & Cromwell LLP, focusing on complex commercial litigation including corporate, insurance, patent, and constitutional law disputes and appeals. Before going to law school, Mr. O’Murchadha worked for the American Arbitration Association in New York.

Mr. O’Murchadha is a member of the New York bar as well as the Bars of the United States District Courts for the Southern and Eastern Districts of New York and the United States Court of Appeals for the Second Circuit.