A litigant seeking the benefit of collateral estoppel must demonstrate that the decisive issue was necessarily decided in the prior action against a party, or one in privity with a party. The party to be precluded from relitigating the issue bears the burden of demonstrating the absence of a full and fair opportunity to contest the prior determination.
Comalgri Holding Corp. v. SC Crossfit, Inc., NY Slip Op 04625 (2d Dep't August 13, 2025)
