New York Attorney General Andrew M. Cuomo is demanding information from dozens of debt collection law firms throughout the state as part of a civil lawsuit to overturn more than 100,000 faulty default judgments, he announced Wednesday.

The suit, Pfau v. Forster & Garbus, 2009-8236, was filed in state Supreme Court in Erie County on behalf of Chief Administrative Judge Ann Pfau. It asks Justice Timothy J. Drury to vacate all default judgments where the sole evidence that a defendant received service notifying him that he was being sued was an affidavit from American Legal Process of Lynbrook, N.Y. (See the complaint.)