You can't, once your in...Your in.
No.
The gang leader is yes.
When you start the quest Shield of Arrav, talk to the Phoenix gang leader. who is the Phoenix gang leaderYou need yourself and a friend one that's a member of one side and the other.
Only a phoenix gang recruit or member can have the Phoenix gang key, they get given it by the door guard.
It is just a 'gang' of his friends, not an organized gang.
In the Pheonix gang hideout.
Once you joined a gang, you can't quit it. So before joining, choose whether you want to join Black Arm, or Phoenix. The above is wrong. If you know the spell telegrab and you are on the Phoenix Gang you can use the spell to steel the 2 cross bows and give it to the Black Arms Gang. Then you can join the Black Arms Gang.
That's why you need someone form the opposite gang to help you out.
The Phoenix Gang is located in Varrock, north of the dark wizards and stone henge but south of the Blue Moon Inn. You climb down a ladder in a little house to get into the Phoenix Gang's area.
no. you need a partner from ether the black arm gang or the phoenix gang
I believe YOU must start the question by talking to the librarian to be the Phoenix gang part, while your partner talks to Charlie the Tramp.
once you have picked one side you cannot change you will have to get another person that hasn't chosen a side yet. The above is wrong. If you know the spell telegrab and you are on the Phoenix Gang you can use the spell to steel the 2 cross bows and give it to the Black Arms Gang. Then you can join the Black Arms Gang.