These would be the two organized crime families. Mafia lead by Dom, seeing as he's doing a pretty good job with it as it looks, and Yakuza being lead by somebody who can actually run it well, and would be a good competition, as far as leading is concerned, with Dom.
These factions should hold the respect that they once used to hold, and be able to produce a clean environment for the server. They are supposed to be organized crime families, not car & trunk breaking assholes who run the server because they poop sock ever so much.
For a little less admin effort - give the leaders the ability to a /leaderflag command so that they can give their LTs leaderflag. Give these factions the accent bars again [Italian] and [Asian] so there is a little more force of roleplay on them. If either of these are abused - they obviously don't belong in the factions that are supposed to hold so much respect.
These would be the street gangs, black and mexican. Since it offers both of the types of street gangs you would primarily see in the streets of a city. Both deserve to be lead by long-time members of this server, maybe Jon_Do followers, or something. Also, to give another little bit of roleplay, give Azteca's to somebody who is fluent in Spanish, but just as fluent in English.
Since these families are just as important to the family system, they should also be able to hold high respect in the server. Although, I think being the "bullies" of the server would be a more appropriate thing for them, being the "gangstas". Doing things like robberies, stick-ups, shit like that.
Give the Aztecas a [Mexican] accent, and Grove a [Gangsta] accent. Also, because a gang in real life wouldn't have a bunch of color coordinated cars, if there is any way, make the cars spawn with random colors in the car spawning area adding a little more of a role play sense.
These would basically be the "learning centers". If you are new, need to have training, ect. this would be the perfect place. No longer should these families be looked down upon by the PD, or other families. More or less, they should be looked at as the perfect breeding ground. Both families should be lead by multiple people who are established to the server.
The leaders should have close connection with the other leaders of the families. If a family has a new person asking to join, tell them "Join (insert family of choice here) and get the recommendation of the leaders and we'll talk". Basically it gives a purpose to actually joining these families, participating, learning, and listening to the leaders.
These leaders, again, should have the /leaderflag ability. However, keep accents out, because they were exploitable, and giving open factions and exploitable thing isn't exactly the best thing to do.
These are obviously the biggest problem in the server. If you want a RESPECTED faction, you won't let these kind of people in these families because your standards shouldn't let them be in your faction. Not saying there aren't some arabs, latvians, south americans, and BMF that couldn't make it in, but the general stereotype is that they won't.
There is a reason for /joingang. These would be, much like the rest of the "smaller gangs" in Los Angeles, unofficial. You aren't going to hear about a "black mafia families" in Los Angeles, you're going to hear about the bloods and the crips. It's basically just like that - if you can't make it into the BIG gang, if you can't be one of them, do your own thing unofficially.
Arabs should be given the Arab Taxi faction, if you're arab, why not role play what you are because you are shit and that is just that.
Take the emphasis more away from zones and rewarding for zones. Put more of an emphasis on role playing. Families should be rewarded for role playing on a role play server, not poop socking a bunch of mats, car ramming everybody, mass logging for points and zones, and being general shitheads.
Role playing should be the lead factor in what families are the best. Role playing a fight, role playing drug deals, material deals, big jobs, shit like that.
Fix up the /families list, so it only lists these families. If there are open family slots, it'll look like open game. Even taking away the family creation forum might be a good idea if this happens.
Also, remove the skin restriction, give the Yakz and Mafia their old skins back, Grove CJ & the old guy with the green shirt, and give the Aztecas a couple more suitable skins.
I'm sure I could come up with more ideas on this, but this is just what came to mind. I think this would be a very good move for SZR to make, not only for population growth, but for a more enjoyable environment.