Say a person never gave charity, due to ignorance or whatever other reason. He has now become a Baal Teshuvah and started observing the Torah. What is the halacha with charity? Does he have to give ...
The Father (not frum) of a Baal Teshuva asked his son for a loan. The son agreed to give his Father the loan on condition that he starts to keep Shabbos. Is this a problem of ribis?