There's Law Enforcement!
Just not....Knight or Star level enforcement.
(Yes I'm bringign this one back. I've been busy)
Anyways, I've fleshed it out a little more. Hotel Moscow's current leader uses the Title of Balalakiva (I think that was her name) or Captain, as respect to the first leader of the region. The Triad is still the same, though I need to decide a name for it other then just "The Triad". Flip flopping between Yakuza having finally gotten a foothold in the city and is the new Big Third, or if the Italian Mafia got it back, or maybe the American Mafia.
Lagoon Company (Likely the players) is a "hereditary' business, similar to the Get Backers. Sometimes passed down, but usually more to a "There always is x group, and there always will be." Certain members of the original may or may not be alive. I haven't decided yet.
The Church of Violence still is there, and is now likely run by Mother Eda, after her predecessor's passing. She died in a gunfight, of course.
Not sure who else I'll transplant in as "elders"/still in business, but that's what I've gotten to so far in the "Gist" category. A lot of other details really depend on the group playing, the campaign, and what you actually need.
Also: If someone can come up with awesome Shadowrun based Black Lagoon pics, I'll love you forever.