A party seeking to vacate an order entered upon a default in opposing a motion must demonstrate a reasonable excuse for the default and a potentially meritorious opposition to the motion. Although a court has the discretion to accept law office failure as a reasonable excuse, pursuant to CPLR 2005, law office failure does not constitute a justifiable excuse where there is a pattern of willful default and neglect, or where the allegations of law office failure are conclusory, undetailed, and unsubstantiated.
Adams v. 161 Ct. St., LLC, NY Slip Op 00837 (2d Dep't February 13, 2025)