A new law intended to unmask the owners of limited liability corporations in an attempt to crack down on money launderers and slumlords could particularly impact Miami and New York, where shell companies are often used to obscure the owners of high-priced real estate. Heretofore, companies could be set up with minimal paperwork, listing little more than an address (often a P.O. Box) and a registered agent, such as an attorney or a third party that collects mail. Going forward, such companies will be required to disclose specific details about who actually owns the company. One Thousand Museum and other high-end, luxury condos in Downtown Miami