Masaail pertaining to the Wali and Compatibility between spouses

Q: I am very confused about the position of Arabs over other races in Islam. The prophet himself said that an Arab is not better than a non-Arab, yet I also have heard that Arabs, as a whole, have been given a superiority over other races. How do we reconcile these two views? Could you explain exactly in what way Arabs are considered superior?

Does this superiority also exist with regards to religion - for example if two people are equally religious and one is Arab and one is non-Arab, is the one that is Arab more excellent in religion or more pious or more beloved to Allah?

Lastly, are Arab women not considered compatible with a non-Arab men in most scholars' opinions, yet all non-Arabs are considered compatible with each other. So, from what I understand this compatibility issue is not about cultural differences, because then non-Arabs would not be compatible with other non-Arabs of different races/cultures. So, what is the reason for the incompatibility between an Arab woman and non-Arab man? What is the evidence for this?

Q: My question is regarding intercaste marriage. Me and the girl I like convinced our parents for intercaste marriage and everything was going well. Everyone agreed but a day before our Nikkah her father refused to do so because of her uncle. They convinced his father that its wrong and put trouble for all of us. Now everyone is willing to do this marriage but her father does not agree. Our Nikkah was not done and we faced challenges. We just want to ask if there is anything that we can do to convince her father to agree to this marriage?

Q: My son is 20 years old and wants to get married. We know that we should not stop him. The girl however is not of good character. On the one hand we are taught to choose a spouse of good character and on the other hand we are taught to forgive and assist with reformation of character. Which takes presidence? Do we allow and guide her or do we say no to the marriage?

Q: Can a Muslim girl marry a Muslim boy without her parents consent? They like each otherand both of them study in a well-known varsity. Both of them are aware of their future but their parents will not allow them to marry now because both of them are not established. Recently they got involved in some sort of physical relationship that they cannot resist. So they want to be married to get rid of the sin. Can they marry now if they want to without their parents consent?

Q: If a girl acts as the wakeel in a marriage, is the marriage valid?

Q: I'd like to know if a Muslim woman can appoint another sister as an agent (wakil)?

Q: Can a step grandfather, without the permission of the biological father give my daughters hand for nikaah. Her biological father says that he has to give permission for the step grandfather to stand as her guardian or her nikaah is invalidated.

Q:

1. Can a Muslim lady who is a widow and has a child from her first husband, enter into nikaah with a Muslim man without seeking permission from her father?

2. Can a Muslim married man, if he has the means, enter into nikaah with a Muslim woman without seeking permission from his existing wife?

Q: If an Aalimah who wears full niqab and does not intermingle with men or watch tv movies etc. gets a proposal from a doctor whos a hafiz, which means he probably does khalwat with women and he watches football, would you even tell the Aalimah to consider him? He is praised for his akhlaaq. He also visits a female dentist.

Should the Aalimah even consider him. She has hope of doing amr bil maroof but fears marriage problems thereafter. Her grandfather (Allah enlighten his qabr) was a Shaikhul Hadeeth.

Q: I want to ask about the quality of knowing a religion oriented person prior to selecting a spouse on religion features.