Cal. HSC § 32501

Any person desiring in his or her lifetime to promote the public welfare by founding, endowing, and having maintained within this state a hospital for the relief of the sick, and for use as a training school for nurses may, by grant in writing, convey to a trustee named in the grant and to the successor of such trustee, any of his or her property situated within this state. If he or she is married or in a registered domestic partnership and the property is community, both spouses shall join in the grant.