Can you create a Mercenary Group

[Can you create a Mercenary Group]

I mean like creating a mercernary group that does not work Under the goverment but With goverment. And you can create it and operate like a mafia gang, but you are the good type. I see a lot of people creates mafia gangs and organization, so i though i we are able to create a group too to fight against those illegal groups would be cool. Maybe not a group but a organization that fight against illegal organizations and work with the goverment.

[Can you do more than one careers at a time?]

So i was wondering if you are able to have more than one careers at a time. Because i want to play as a example criminal at night time and a business man during the day time or maybe i'll be a retailer during weekends or something like that. Because if we have this ability it be more awesome