Every person is entitled to $120,000 worth of his or her homestead, or of his or her interest therein, as a homestead. The homestead right created by this chapter shall exist in manufactured housing, as defined by N.H. Rev. Stat. § 674:31, which is owned and occupied as a dwelling by the same person but shall not exist in the land upon which the manufactured housing is situated if that land is not also owned by the owner of the manufactured housing.