1 question: IS this legal? There is an enterprise that makes tons of money. They own a website and the name of this website isn´t copyrighted. So, would it be legal to buy the domain and offer it them vs big cas$ ? Again, it´s not like microsoft(tm).com or google(tm).com . It´s a company "A" that runs a site named "B.com" without the expression "B" being copyrighted. If yes, what would be the best method to register the domain immediately after expiration of domain?
A company doesn't need to own a TM to have a claim to own that domain if you have regged it in bad faith & offered it for sale to them. So to answer your question, don't do it.