It is well settled that the decision of a trial court sitting as fact-finder should not be disturbed upon appeal unless it is obvious that the court's conclusions could not have been reached under any fair interpretation of the evidence, particularly when the findings of fact rest in great part on the court's assessment of the credibility of the witnesses (see, Thoreson v. Penthouse Intl., Ltd., 80 N.Y.2d 490, 495;K.I.D.E. Assocs., Ltd. v. Garage Estates Co., 280 A.D.2d 251, 253). Here, according the trial court's findings of fact appropriate deference, it is plain that the trial court's conclusions, among them that the lease entered into by plaintiff, as landlord, and defendants, as tenants, was the document produced by plaintiff, that the purported lease offered by defendants had been forged and that defendants' defense of surrender was not legally viable, were premised upon a fair interpretation of the evidence.
The record discloses in addition that the sanctions imposed by the court upon defendants for their unremitting course of obstructionist, frivolous and otherwise contemptuous conduct during this litigation, including disobedience of court orders, were entirely proper (see, 22 NYCRR 130-1.1[a]; Engel v. CBS, Inc., 93 N.Y.2d 195, 203).
THIS CONSTITUTES THE DECISION AND ORDER OF THE SUPREME COURT, APPELLATE DIVISION, FIRST DEPARTMENT.