Under immigration law, people who are not citizens can be removed from the U.S. if they commit certain crimes or acts. However, depending on the crime or act, they might qualify to apply for a pardon or waiver of this removal order, which is a “Cancellation of Removal for Certain Permanent Residents”.
Cancellation of removal is at the discretion of the Attorney General and thus not mandatory. A judge or the BIA has to decide whether you meet the requirements for cancellation and whether you deserve this chance. It is important to know that there are steps necessary to qualify for cancellation of removal.