Making the condition that the husband cannot take a second wife

Q: I am planning to get married and proposed for a certain girl. The girl whom I want to marry said that if I accept the condition of not taking a second wife in the future, then she will marry me. Personally, I also do not want to take a second wife in the future. I want to spend my life with my first wife till I die. The question is: can we make the condition of not taking a second wife in the future at the time of the nikaah?

Naming one's house

Q: I constructed a new house and for that I received financial help from my friends, so I would like to name my house as Habeebi or Al-Habeebi, can I name any of these and if so, which is more better?

Sending one's parents for Hajj

Q: An elderly man and woman have been accredited to go for Hajj. However, due to limited financial means, they are unable to go. Their young son has already performed Hajj and has been accredited for the second time to go for Hajj. Is it the son's responsibility to first send his parents for Hajj?

Mistakenly swallowing something while fasting

Q:

1. During Ramadhaan, I was baking a cake and whilst mixing, the chocolate powder went everywhere and I could taste it in my throat. The chocolate powder must have gone down my throat because it got stuck at the back of my throat. When I swallowed, it went down. Did this break my fast, and is kaffarah necessary?

2. Does swallowing (loose) skin on the lips break the fast?