Cancellation of removal under INA § 240A(a) is an important defense for lawful permanent residents who have become removable, due to criminal record or other reasons. The requirements for statutory eligibility are somewhat complex, and in 2019 the U.S. Supreme Court will hear a case deciding an aspect of the most complex part, the “stop-clock” rule for determining seven years of residence. See Barton v. Barr, 139 S.Ct. 1615 (2019). This Advisory is a step-by-step guide to eligibility to LPR cancellation of removal, and it discusses how the rules will apply depending on the outcome in Barton v. Barr.