Hello, change the name it's my ex mafia.
Thanks.
Link to Courts-Gambino Mafia name and etc. Accepted as a Patent.
Then you can tell him what to do mate  

Also I dont think you should tell them to change their name, as the Gambino is a RL family, AND if you care so much about the name, why dont you just rename Marlen to Gambino?
Good luck with this Carlo  
