The Dashboard screen allows all members to see their family bosses, bank balance & bullet storage. Members can also leave the family from this screen. The cost to leave is $250k however if you have businesses in your family that are making a loss then you must also pay the loss they are making to leave.
If you are kicked from a family then there is no cost to you.
The Boss of a family can use the Settings tab to change the family colour as well as the name. Changing the family name costs 15 credits.