Some valid points have been raised, but, I still see a few issues with those. To start, it wouldn't make sense for my character to own a company that is contracted to the Casino, but, like I said, IC he would buy the casino and own it. Filling it with staff sounds like a good idea, but I'm not sure it would work. A vanity guild or large number of staff would take many people away from their main toons to RP as staff and I don't want to make the RP community smaller just so I can fill up a vanity guild for RP. Maybe some characters who already operate staff-like could be hired, but like myself, it is probable that they would be in many different guilds.
As to providing more than just RP, I am unsure. I can't have things running 24/7 there but having RP events and such I know will work.