A motion to dismiss pursuant to CPLR 3211(a)(1) may be granted only if the documentary evidence submitted by the moving party utterly refutes the factual allegations and conclusively establishes a defense to the claims as a matter of law. Judicial records, as well as documents reflecting out-of-court transactions such as mortgages, deeds, contracts, and any other papers, the contents of which are essentially undeniable, would qualify as documentary evidence in the proper case. In order to be considered documentary, the evidence must be unambiguous and of undisputed authenticity. Letters, emails, and affidavits are not documentary evidence. An affidavit is not documentary evidence because its contents can be controverted by other evidence, such as another affidavit.
Cajahuanca v. City of New York, NY Slip Op 05198 (2d Dep't October 23, 2024)