California Code, Civil Code - CIV § 798.87

(a) The substantial failure of the management to provide and maintain physical improvements in the common facilities in good working order and condition shall be deemed a public nuisance. Notwithstanding Section 3491, this nuisance may only be remedied by a civil action or abatement.

(b) The substantial violation of a mobilehome park rule shall be deemed a public nuisance. Notwithstanding Section 3491, this nuisance may only be remedied by a civil action or abatement.

(c) A civil action pursuant to this section may be brought by a park resident, the park management, or in the name of the people of the State of California, by any of the following: