Today more than ever, ASC owners are selling equity interests to doctors. These transactions should be win-win situations - they let physicians supplement their ever-decreasing professional fees and surgery centers crank up their case volumes by adding new utilizing physicians - but they must be carefully structured to navigate regulatory hurdles and to protect the ASC from a business perspective on a going-forward basis. These transactions also position ASCs for possible sales to national ASC companies. Here, I'll tell you how to design your transactions and agreements so that you stay out of regulatory trouble and still boost profitability.