I think it's that once you go through the bum sequence you get some information that you pass onto Fawn and then you can go ahead with the plan.
Also nope
Unless there's some part of this sequence with the bums I am missing.
Paid them another 500, now they seem to do nothing if I see the don, and nothing if I stand on their tile, or any other in that area
And she still just has the greyed out 'find out their routine' option as her only option
The lack of any clarity is this games worst feature by far, since other games you can just google situations like this, but here you'll just get info on the old version. And in-game there's absolutely nothing to go off.
Its doubly annoying because I'm strong enough that this entire setup is 100% unneeded and if it wasn't for % chance rng cutscene bullshit I could simply kill all of his guards without an issue, they're not even strong