The story could be similar to Rizzuto family. First scene the family capo was killed in New York and in Montreal (maybe using another name) the decina become independent and start a war expand rackets over the city.
The character start as enforcer and continue creating his own gang and climb the rank of the mafia or rebel and made bussinesses with the other players:the ndrangheta,theblack gangs,the irishmen and the bikers.
The time would be from 1999 to 2023.