The motion court is afforded broad discretion in supervising disclosure, and, on review, its determinations will not be disturbed unless that discretion clearly has been abused. Here, defendants do not point to any flaw or error in the lower court's reasoning, and so they fail to satisfy the abuse of discretion standard. In addition, the Appellate Division determined that the motion court correctly found that defendants failed to demonstrate that an order of dismissal or preclusion was warranted by the record. It is well settled that the drastic remedy of striking a party's pleading, pursuant to CPLR 3126, for failure to comply with a discovery order is appropriate only where the moving party conclusively demonstrates that the non-disclosure was willful, contumacious or due to bad faith. Even if the proffered excuse is less than compelling, there is a strong preference that matters be decided on their merits.
Youwanes v. Steinbrech, NY Slip Op 02232 (1st Dep't April 6, 2021)