I see plenty of shell companies for sale through reputable sellers: LLCs that have no tax ID number or bank account and that were established a few months to a few years ago. The market prices of them seem to be double what the costs of setting them up and keeping them running would be.
I'm a lawyer and regularly set up LLCs for clients, and so I'm thinking that this could be a good small side business.
Why in the world, though, would someone pay $500 to a few thousand dollars more to buy an existing LLC compared to just setting one up? What am I missing; are there any downsides, other than being stuck with a company that nobody wants to buy?