不知道两人是公民还仅仅是绿卡如果不是公民服刑了等国土安全部的移民官员来押送驱逐出境吧

Any crime convicted with a sentence greater than 1 year
is suually a deportable offense. and their crime
involve cheating so maybe they are crime of moral turpitude. Crimes of moral turpitude are usually deportable offense regardless of sentence terms