Masaail pertaining to the Wali and Compatibility between spouses

Q: Please could you advise me on the following matter. I am considered Islamically mature and have been for nearly 10 years. I have met a potential spouse who was introduced to my family and wants to make nikkah with me. My family are refusing based on the following reasons:

1. The age difference between him and I is too much (9years)

2. He is too old for me (he is 27 years old)

3. I am too young (19 years)

4. I do not have a degree/career and I am cannot stand on my own two feet yet

5. He resides in a different continent

6. He is from a different cast to me

In terms of his Deen and character, we have heard pleasing feedback from neutral sources. He earns a halaal income and will be able to provide for me. His family are very supportive. They have agreed to send me home twice a year and allow me to continue my studies, illustrating their willingness to accommodate my family's reservations as far as possible. But to no avail unfortunately; my father does not want me to take this step despite my plight. My father and I do not have the same understanding, because he would rather the boy and I "go for coffee" and "go for movies" and remain friends. However I unlike him realize there are 3 things that shouldn't be delayed (salaah, burial and nikkah), and we shouldn't refuse proposals based on unIslamic reasoning. My father unfortunately has not made the wisest decisions in his lifetime which makes me want to do the 'right' thing even more; in a halal manner. I myself have made istikhara and feel very content in my choice of a life partner. I continue to make duaa for guidance from The Almighty. Please advise the way forward considering my father is using abusive language, due to me still being firm in this decision of mine. His reasoning for me is not Shariah compliant, feel free to correct me if I am mistaken.

Q: I would like to know whether it is necessary for the brides representative to be her Mahram and if nikah was made without her Mahram as her representative will that nikah be valid also how many witnesses are necessary for the nikah to be valid?

Q: Can I marry without my parents consent. I fear that I may commit zina?

Q: Can I marry a Hindu girl who wants to secretly accept Islam and follow Islam but not in the open public due to discriminiation of people?

Q: If a girl is adamant in marrying a boy who is of no match to her nor does the boy conforms to the girls Kufu; the girl observes her daily prays regularly and wears hijaab while the boy is known to be involved in drugs and alcohol,and the girls parents do not approve nor consent to the marriage at all.

Question#1: Based upon the above situation if the girl was to have her Nikkah done privately without her parent’s approval and her parents did not grant their consent to the Nikkah, will this Nikkah be rendered valid?

Question#2: Based upon the above situation if the Nikkah was rendered vaild, are the parents then correct in their own right to consider dissolving or annulling the Nikkah?

Question#3: Based upon the above situation if dissolution or annulment of Nikkah is not available or not appropriate will it then be acceptable and suitable for the parents to suggest and encourage their daughter to seek for a Talaaq (Khula)

Q: I just wanted to know if you have no wali can you do nikaah? I have nobody but I want to do nikaah. His parents are not agreeing. Also we are both adults and want to get married can you help please?

Q: I am a Muslim girl who wants to marry a Muslim man. My father passed away a long time ago. My question is can my step father give my hand?

Q: Is it wrong Islamically to reject a marriage proposal because the guy has a disability. Alhamdulilah he is a good guy but he has a speech disability wherein he stutters a lot. Sometimes it's difficult to understand what's he is saying.

Q: When the Imam leads the nikaah, does he have to ask the girl with two witnesses or just two witness is enough. In our locality people say Imam should ask the girl and they get offended if the Imam doesn't go.

Q: I made nikah with my husband. He is a Maliki . I do not folow any madhab. The imam who made a nikah implemented it without a wali according to the hanafi madhab. After I found out that there are sahih hadiths proving that there is no nikah without a wali. Also most of the madhabs don't accept the nikah without a wali. Please help me to clear the situation, should we make a new nikah or this one is valid?