Cal. Civ. Code § 798.81

The management (1) shall not prohibit the listing or sale of a used mobilehome within the park by the homeowner, an heir, joint tenant, or personal representative of the estate who gains ownership of a mobilehome in the mobilehome park through the death of the owner of the mobilehome who was a homeowner at the time of his or her death, or the agent of any such person other than the management, (2) nor require the selling homeowner to authorize the management to act as the agent in the sale of a mobilehome as a condition of approval of the buyer or prospective homeowner for residency in the park.