Starting November 20th, how GF and GFC is earned and maintained is changing.  Anyone who obtains GFC prior to November 19th will keep their GFC  position and its benefits until their death or they step down from the rank.

From that point on, excluding those who are grandfathered in (godfathered in?), there will be a new hierarchy which is based on live data.  GF/GFC is not a position you earn and then relax on, its one that you earn and maintain  - it can be lost in a heartbeat to someone who puts in more effort than you, or simply backs enough voices that change the balance of power.  It can be lost with a bullet, a conversation, or even the stroke of a pen.

There will still be the XP/Age/Member Count requirement, but the position is bestowed upon whomever controls the collective of people who carry the most power in that particular area.  Every city can have up to 1 GFC.  The number of GF slots is based upon statistics of your city and can increase or decrease depending on its numbers. An Org/Family/Crew/Gang's profile will show their power and its breakdown, you can judge the moves needed to be made to overtake someone. 

A glimpse into how it works:

GFC Jimmy's umbrella covers 38 people who have a collective XYZ456 of accumulated power.  Frank, who also operates out of the same city, has 41 people, but has slightly less power, a collective XYZ123.  Some of those who work under Jimmy are not feeling they are getting the best return out of their work, and are open to negotiating with Frank.  Frank, ever the opportunist, takes the time to wine and dine 2 of Jimmy's largest members, bring them into the fold, enters into a renewable weekly agreement with those 2 members, thus tipping the balance so that Jimmy no longer has the majority of the collective power under his umbrella.  He is no longer GFC and no longer receives any of the boosts for it. Frank has usurped Jimmy, and is now the new GFC.  Frank can try to leap frog off of this and try to consolidate even more power - widening the gap and shoring up his new lead.  

Roo, once a rival on equal footing but fell behind, takes notice of Jimmy's reduction in power.  Never one to let others decide her fate, she puts a bullet into Jimmy's face.

As a person fresh off the boat, you start doing low level crimes and earn a few bucks.  You are approached by an individual that reminds you that you are currently operating on his soil, but hes a fair man, and he will gladly let you continue to operate, but he wants his 10% of everything you do. You have a business relationship, you kick up a % share, and he provides you with a place to operate out of, as well as unique business opportunities that you are unable to get on your own. 

He too has an upline, someone who provides a place to operate out of, and unique business opportunities that he would be unable to get on his own.  That relationship is measured only 1 week at a time.  Every week, both sides of the equation evaluate if this is the best situation for their own individual needs and the needs of those who depend on them.  If at any given time the grass looks greener on the other side, simply don't renew your agreement, and both walk freely away from each other. It is in your best interest to take care of your own needs and those who depend on you, if the scales ever tip away from that, move on.

This dynamic is a little different than how families are done now, it has a built in safety mechanism that, unless both parties believe their current arrangement is the best for both of them, the agreement expires and they are free to enter into an agreement with another.  This is business, dollars, not blood.

If you need to take another family out, you target their fierce loyalists, but you absorb their cash cows.

rivalries or competing crews within cities will limit the impact of it though.

When it comes to resources and power, it is a zero sum game.  Not everyone will be able (or willing) to stay in the goldilocks zone that makes it mutually beneficial for their neighbors.

There will still be the XP/Age/Member Count requirement

You can not be GFC while 3 days old.  

You can not be GFC with 9 units.

You can not be GFC with 1 member.

You can not be GFC if there is someone who is in your city and has more collective power than you.  They are the GFC.

Units will be shown like they currently are.

So it is the standard 90 days, 60 units.. Correct?

Yup, those aspects of the requirements stay exactly the same. 

GFC is a current status, not a permanent rank.  It is given to whomever controls the most power in that city.  There are city/district settings as well as both tax and stat incentives to whomever is currently the top dog for that city.