A guaranty is a promise to fulfill the obligations of another party, and is subject to the ordinary principles of contract construction. On a motion for summary judgment to enforce a written guaranty, all that the creditor need prove is an absolute and unconditional guaranty, the underlying debt, and the guarantor's failure to perform under the guaranty.
20 Rewe St. Ltd. v. Zheng, NY Slip Op 03024 (2d Dep't June 5, 2024)