Astarieth, Judgement
Unfortunately, the shred bin does appear to be a good one. Also no indication of passwords. Seems like the sleazy lawyer knows how to cover his tracks.
Poking around the building, he almost finds nothing, but in the last bits notices one of decorative panels on the wall is a tad loose. It easily comes out, revealing a duffel bag with a gun, a (presumably fake--Rickman's face but other identifying info) passport and IDs and birth certificate, a burner phone unopened in its box, and several bundles of hundreds. Looks like it's Rickman's "get out of the city quick" bag.
* post roll count doesn't match database