Why would you want to take a wild animal and force it into captivity regardless if it is captive bred?
I dont think you can legally own a lion anywhere here and your "breeder" of said lion should know the answers to your questions and really I think your best bet is to contact Ministry of Agriculture on this topic.
As for your municipalities that have little to no rules, you mean unorganized townships, however neighbours may raise a stink about a lion living next door and getting you in some major trouble with the ministry.
Courage is being scared to death and saddling up anyways. ~John Wayne