The court properly exercised its discretion in modifying the condition upon which plaintiff was granted a Yellowstone injunction to require payment of partial use and occupancy ( see, e.g., 61 W. 62nd Owners Corp. v Harkness Apt. Owners Corp., 173 AD2d 372, lv dismissed 78 NY2d 1123). The initial agreement that plaintiff claims to be a stipulation was never reduced to writing or "so ordered" by the court and no payments were made to an escrow account at that time. In any event, the court would have power to modify any prior arrangement based upon the showing of mistake ( see, Matter of Frutiger, 29 NY2d 143, 150); it was initially assumed that the matter would be expeditiously determined in a few months in Housing Court and instead has dragged on for a period of close to three years.
We have considered plaintiff's remaining arguments and find them to be without merit.