Can we guess at how large in numbers is this faction in LA and in Vegas?
There really isn't a faction, per se. As Mikey was saying, a lot of the LA members were originally from back east, including Buffalo, which led to the rumors of the LA and Buffalo mobs (as well as the Gambinos) attempting to "move in" on Las Vegas back in the 1990's. It was part of what resulted in the Operation Thin Crust case. As I've said before, a decade ago it was said there were only 10 mob members still living in Vegas. And that's about how many remain in what's left of the LA family, give or take.
Check out these articles....
Mob's LV clout doubtful
http://www.reviewjournal.com/lvrj_home/1997/Apr-20-Sun-1997/news/5234942.htmlFBI deals crippling blow to L.A. mob
http://www.lasvegassun.com/news/1998/feb/03/fbi-deals-crippling-blow-to-la-mob/Organized crime loses its foothold
http://m.lasvegassun.com/news/2002/jul/02/organized-crime-loses-its-foothold/Outcall industry proved vulnerable to mob
http://www.lasvegassun.com/news/2002/jul/01/outcall-industry-proved-vulnerable-to-mob/The Vegas Sting
http://www.guardian.co.uk/lifeandstyle/2003/nov/01/weekend.clarelongrigg
