回复:谢谢xiaobaitu! 那万一主申请人没法在六个月内登陆,是否
if principal does not finish the admission/landing before immigrant visa expiration, yes, derivatives' LPR status can (and should) be revoked.
if principal does not finish the admission/landing before immigrant visa expiration, yes, derivatives' LPR status can (and should) be revoked.