I'm purchasing a clinic from a former supervising physician. In Colorado, an MD/DO has to own 51% of the company. MD will be "silent partner" (no voting rights) and I will pay him a % of the net billing (3% currently). If you can find a good medical attorney, they should know the ins and outs of the state requirements.
I am essentially purchasing a list of patients and goodwiill, as the doc will be keep the name, 400 patients, and all his tangible assets. I plan to purchase used exam tables and pay other providers in the building initially to use their EKG/PFT machines. Hope t