Nikaah & Marriage Issues

Q: Can I demand separate accommodation (a house) from my husband?

Q: I am so worried after reading that a marriage without a guardian is not right. I am hanafi and always thought that it was fine for me because I was married before already and have kids. I married without telling my parents because they never would allow me to be a second wife. Someone else acted as my guardian at the nikaah. All I want to know now is am  I living in haraam? 

Q: Family planning is not permissible in Islam. I have come to realise that even though we use different methods of family planning, everything lies in Allah Ta'alas hands. If Allah Ta'ala wishes it to be, nothing can prevent it. My husband and I use condoms as a preventative. I would now like to refrain from this as I feel it is not correct and this also falls under family planning, however, my husband feels contrary. Is azal also regarded as family planning. If it is ok to use condoms, no problem. However, if its not permissible then what should I tell my husband?

Q: Would the nikah of an intoxicated person who was not in his senses be valid?

Q: Is it necessary to give the mahr before cohabiting?

Q: Is is it allowed for the bride and groom to sit in seclusion before nikaah?

Q: Can I marry without the concent of my parents and will it harm me in the future and hereafter?

Q: Can one request as mahr that the husband will never marry another wife while he is married to her?