“Gross rent” means rental paid at arm’s length, solely for the right of occupancy of a homestead. “Gross rent” does not include, whether expressly set out in the rental agreement or not, charges for any medical services; other personal services such as laundry, transportation, counseling, grooming, recreational and therapeutic services; shared living expenses, including but not limited to food, supplies and utilities unless utility payments are included in the gross rent paid to the landlord; and food furnished by the landlord as a part of the rental agreement. “Gross rent” includes the rental paid to a landlord for parking of a mobile home or manufactured home, exclusive of any charges for food furnished by the landlord as a part of the rental agreement, plus monthly municipal permit fees paid under s. 66.0435 (3) (c) for a rented mobile home or manufactured home. If a homestead is an integral part of a multipurpose or multidwelling building, “gross rent” is the percentage of the gross rent on that part of the multipurpose or multidwelling building occupied by the household as a principal residence plus the same percentage of the gross rent on the land surrounding it, not exceeding one acre, that is reasonably necessary for use of the multipurpose or multidwelling building as a principal residence, except as the limitations under s. 71.54 (2) (b) apply. If the homestead is part of a farm, “gross rent” is the rent on up to 120 acres of the land contiguous to the claimant’s principal residence plus the rent on all improvements to real property on that land, except as the limitations under s. 71.54 (2) (b) apply. If a claimant and persons who are not members of the claimant’s household reside in a homestead, the claimant’s “gross rent” is the gross rent paid by the claimant to the landlord for the homestead.