Marriage to a mahram woman is a major sin but does not mean that one is an apostate

He committed homosexual acts with someone, and now his brother wants to marry the sister of that person. What is the ruling?

She has been living with a man for several years and she wants to do Hajj then go back to him

She committed an immoral action with a young man, then he left her; should she wait for him to marry her?

He committed zina with her, then he repented, and he is afraid that she may harm the baby; what should he do?

Concerning obedience to his disbelieving parents, and attribution of an illegitimate son

He committed zina before he became Muslim, and had a son; can the child be attributed to him and how should he take care of him?

Ruling on one who commits zina after doing the marriage contract and before consummation of the marriage

A girl is not sure whether she is to be attributed to her father

If a woman commits zina, then she is forced to marry a chaste man, is that marriage valid?