This is amazing. I love the idea of arms dealers paying off Lone Star enough to operate a crime mall.
This is has happened in one of my games.
My players got in good with Lone Star, who started operating an underground vigilante net, mainly through the Ork Brotherhood.
Effectively, the runners were "Shadow-Deputized", and in exchange for their "community service", Lone Star let them operate a Shadowrunner Club, named "Painkiller".
Their team became the Club Painkiller Crew.
It was built over the front for an illicit (off-the-books) cyberclinic that formerly belonged to Renraku. (and oh boy, the small street war that raged over that coup; Renraku was NOT happy)
Upstairs was a "legitimate" bar and entertainment scene with regular gigs and occasional premium "real" food cook-offs.
But downstairs, and in the back, was where the real deals went down.
The back rooms (insulated against all manner of sensors, and thickly armored) were used for the many Mr. Johnsons of Seattle and abroad to come out and meet on "Neutral Ground".
Everything else in the back and first basement was effectively a "Farmer's Market" style black market. They had gun runners, drug pushers, talisleggers, tech-heads and all other manner of smuggler goods moving in and out on a semi-regular basis. Lone Star turned a blind eye in exchange for 10% cut and details on what was moving in bulk.
It was really funny playing Shadowrun Returns and visiting the Seamstress Union; because it was almost note-for-note what I had in my game for years prior to that game's release.
Alas, it was not to last forever. Painkiller closed its doors forever when Knight Errant scored the lucrative Seattle contract; terminating the protection gig and forcing the team to disband.