Matter of Isidro-Zamorano, 25 I&N Dec. 829 (BIA 2012) (applicant for cancellation of removal whose son or daughter met the definition of a "child" when the application was filed but turned 21 before the Immigration Judge adjudicated the application on the merits no longer has a qualifying relative under INA 240A(b)(1)(D), 8 U.S.C. 1229b(b)(1)(D) (2006); Child Status Protection Act does not apply to applications for relief); clarifying Matter of Bautista Gomez, 23 I&N Dec. 893 (BIA 2006).
http://www.justice.gov/eoir/vll/intdec/vol25/3756.pdf