2005 California Corporations Code Sections 21200 CHAPTER 3. MEDICAL ASSOCIATIONS

21200.  Any unincorporated association that is an organized medical
society limiting its membership to licensed physicians and surgeons
and that has as members at least 25 percent of the eligible
physicians and surgeons residing in the area in which it functions
(which must be at least one county) may, without incorporation,
purchase, receive, own, hold, lease, mortgage, pledge, or encumber by
deed of trust or otherwise, manage and sell all the real estate and
other property as may be convenient for the purposes and objects of
the association.  However, if the association has less than 100
members, it shall have as members at least a majority of the eligible
persons or licensees in the geographic area served by the particular
association.  The members of that unincorporated association are not
individually or personally liable for debts or liabilities
contracted or incurred by the association in the acquisition of lands
or leases or the purchase, leasing, construction, repairing or
furnishing of buildings or other structures to be used for the
purposes of the association or for debts or liabilities contracted or
incurred by the association in the carrying out or performance of
any of its purposes; provided, that the purposes are within the
purposes stated in Section  18020.