Shaykh Yasir Qadhi touches important points on the Fiqh of Marriage.
We should only take into account the religion when marriage is considered and not on other factors like status, race, lineage.
Types of marriage contracts that has been prohibited in Islam:
Nikaḥ Shighar
Nikaḥ Mutah
Not giving Mahr to the woman
The Wali cannot say for the Nikah to happen without conjugal union
Medical factors
Nikah Al Kuffar - we are acquainted with the laws, conditions and basics of this kind of marriage by Shaykh Yasir Qadhi.