What absolute bullshit.
She gets her earring stolen, it gets sold to this guy who clearly knows they're at LEAST shady, and immediately palms it off to someone else, then our main characters get stuck working part time for them??
No fucking way.
Thats some serious fucking bullshit for them to expect me to believe that that is a reasonable series of events. I would not trust that guy in the slightest to get that earring back.