The Supreme Court does not have subject matter jurisdiction over a collateral attack on personal jurisdiction in a prior action. If personal jurisdiction over a party was not properly obtained in an earlier action, its remedy is to move to vacate the default judgment in that action, pursuant to CPLR 5015[a][4].
224 Lefferts Ave. Hous. Dev. Fund Corp. v. Haile, NY Slip Op 00227 (2d Dep't January 21, 2026)
