CA Civ Code Section 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:

(1)

The district attorney or the county counsel of the jurisdiction in which the park, or the greater portion of the park, is located.

(2)

The city attorney or city prosecutor if the park is located within the jurisdiction of the city.

(3)

The Attorney General.