The 10-year bar is one thing. But the other, separate thing is that when someone has been found guilty of participating in a sham marriage, that person is no longer eligible for any immigration benefits for the rest of his life. So unless Congress changes the law to eliminate that penalty, you will never get an I-130 approved for him. Your two previous I-130s were not denied because he has a 10-year bar. They were denied because of his previous sham marriage. And unfortuantely you will keep getting the same result for the same reason.