Personally, I think that a pre-nup is a pre-planned failure of a marriage. Since I don't believe in divorce, I can't see doing the pre-nup. I do have a lot to loose, but if I felt that there was even a chance, I would rather not go through with the marriage in the first place. If you are looking for a business relationship, then form a partnership and become legal partners. If you are marrying someone because you love them and trust them, then love and trust them. However, this is only my opinion. Not sure if you were asking for opinions or just legal advice. It seems you are looking for both.