
    Robert Warshaw, Respondent, v. Laura Hassid, Appellant.
   In an action by a vendee for specific performance of a contract of sale of real property, in which defendant counterclaimed for rescission based on fraud; defendant appeals from a judgment of the Supreme Court, Nassau County, entered June 2, 1972 after a non jury trial, in favor of plaintiff. Judgment reversed, on the law, and new trial granted, with costs to abide the event. No questions of fact were presented on this appeal. It was reversible error on the part of the trial court to sustain plaintiff’s objection to defendant’s attempted cross-examination of plaintiff and to reject the proof summarized in defendant’s offer of proof. The paroi evidence rule has no application in a suit brought to rescind a contract on the ground of fraud (Barash v. Pennsylvania Term. Real Pístate Corp., 26 ,N Y 2d 77; Sabo v. Reiman, 3 N Y 2d 155; Adams v. Gillig, 199 N. Y. 314; 4 Williston, Contracts [3d ed.], § 631, pp. 948-949). This principle is of course likewise applicable where the rescission based on fraud is sought in a counterclaim. In addition, paroi evidence is admissible to prove the existence of a condition precedent to the legal effectiveness of a contract (Hichs v. Bush, 10 N Y 2d 488, 491; Cuddy v. Universal Cons. Ind., 38 A D 2d 971; Hoagland, Allum & Co. V. Allan-Norman Holding Corp., 228 App, Div. 133, 135). In the present case, defendant sought to introduce testimony that as a means of inducing her to enter into the contract plaintiff had orally promised that the contract would not take effect if defendant would be unable to obtain the co-operative apartment she was then seeking. The trial court improperly excluded this testimony since, in our view, such testimony tends to establish the existence of a condition precedent to the legal effectiveness of the contract of sale. Rabin, P. J., Hopkins, Martucsello, Latham and Shapiro, JJ., concur.  