Is it permissible to marry a young man rejected by the father and family due to unequal lineage, knowing that an illicit relationship occurred between the two parties and they regretted it and repented, and can the guardian in this case be, for example, a mosque imam?

What occurs by way of acquaintanceship between young men and women, under the pretext of desiring marriage, is a door to evil and corruption. Through it, honor is violated, and behind its veil, forbidden acts are committed. This is far from the guidance of Islam, which protected women, preserved their dignity and chastity, and legislated lawful marriage for the relationship between men and women.