General Obligations Law § 17-101.

The statute revives a time-barred claim when the debtor has signed a writing which validly acknowledges the debt. To constitute a valid acknowledgment, the writing must be signed; it must must recognize an existing debt; and it must contain nothing inconsistent with the debtor's intention to pay the debt.

Karpa Realty Group, LLC v. Deutsche Bank Natl. Trust Co., NY Slip Op 05921 (2d Dep't August 29, 2018)

Here is the decision.