What is our jurisdiction to review the denial of cancellation of an application?

Although our jurisdiction to review the denial of cancellation is limited, see 8 U.S.C. 1252(a)(2)(B)(i), (D), we have jurisdiction to review the agency's "nondiscretionary, or purely legal, decisions regarding an alien's eligibility" for that relief. Sepulveda v. Gonzales, 407 F.3d 59, 63 (2d Cir. 2005). The applicable standards of review are well established. See Yanqin Weng v. Holder, 562 F.3d 510, 513 (2d Cir. 2009) (reviewing factual findings for substantial evidence and questions of law and application of law to fact de novo).