I don't really see this as a necessity of being a bad guy.  Certainly if the characters (and players) are opposed to things such as kidnapping and enslaving, then the group should discuss and perhaps discount those ideas.  The central idea I am proposing here is a brothel run by the Hutt Cartel on Cloud City.  Just thinking of this as the central home base of operations for the group and the source of some adventure ideas.  I certainly can see ideas where the characters might need to collect a star dancer from another planet, protecting them against rival groups.  Perhaps hunting down a rough customer to send a message.  The doctor having to patch one up or maybe rush out to care for the child of a worker there.  Also what if the Hutt are trying to sell spice out of the brothel or if one of the workers has a spice problem.  Perhaps there is a Rebel sympathizer there and the Imperials discover this.  There's also the whole thing with Lando and the Imperials on Cloud City.<br/><br/>I don't think the characters are bad guys in this situation, but delve more into that gray area that Edge of the Empire explores.  If you aren't big on the brothel then there is the notion of a cantina, dance club or simply scrap the idea and reach for something else.