If a Ba'al T'shuva had chamets that was either very important to him, or had a big monitary value and had it in his possesion over pesach before he came back, is there a possible Heter for him so that he won't have to get rid of it? This is just a quizzing question. I already know the answer.
I haven't looked it up, but I heard a shiur about something like this. Theoretically, if the fellow had a non-Jewish wife who shared joint ownership of his property, then as long as the chametz's value is <50% of everything they own, we can retroactively view the chometz as being hers and the non-chametz his.