Hire a lawyer and find out. You don't say where the website is located, what nationality you have, and where you actually reside. As regards the F1...

The short answer is yes it is. I don't see what your problem is.

This is a matter for the UK courts and law. Consult a British lawyer.

You need to hire a probate lawyer in your jurisdiction (India, South Africa?) to help you figure this out.

This is an immigration question. Pass to that area.

This is a question for a Canadian lawyer. However, generally you can't burden a purchaser with such a condition. Hire a Canadian lawyer and find out.

This is a Canadian law question. You must ask a Canadian lawyer.

I'm not sure what the question is. If you have an issue with your cousin for having the corpse cremated without consent, that's an issue for the...

This is a question of French administrative/labor law. He needs to hire a French lawyer.

Yes and yes. Hire an international lawyer in the place you want to open your business and he can set you up.