A person who is to receive from or administer to a resident of the principal dwelling, continuous care and assistance necessitated by advanced age or infirmity, the need for which is documented by a physician's medical statement; or

A caretaker, hired-hand or other similar full-time employee working on the lot, tract or parcel in connection with an agricultural or related use of the premises; or

Relatives over 62 years of age with a low income as defined by Section 8 of the U.S. Housing Act, 42 U.S.C. § 1401, who are related by blood or marriage to a resident of the principal dwelling.

The lot, tract or parcel shall be of such size and configuration, and the temporary dwelling shall be located in such a manner as to enable compliance with such zoning and subdivision regulations as would be applicable but for the authorization of this title; provided, that one temporary dwelling may be approved for each authorized permanent dwelling, subject to septic system approval.

The temporary dwelling shall be a temporary structure such as a mobile home designed, constructed and maintained in a manner which will facilitate its removal at such time as the justifying hardship or need no longer exists; provided, that the additional dwelling authorized includes a covenant obligating the purchaser or successors to remove the existing dwelling upon the death or permanent change in residency of the seller retaining a life estate.

A current vehicular license plate, if applicable, shall be maintained on the temporary dwelling.

No more than one temporary dwelling shall be authorized under this chapter if the primary dwelling is a mobile home.

Upon cessation of the hardship or need justifying the temporary dwelling permit, either such dwelling shall be removed or the owner of the lot, tract or parcel shall comply with all applicable zoning subdivision requirements.

Applications for temporary dwelling permits shall be submitted to the mayor on forms provided by the town, and shall be accompanied by a processing fee. The application shall include the following:

A temporary dwelling permit shall be valid for two years, and may be renewed by the issuing body for successive two-year periods upon written substantiation by the applicant to the continuing hardship or need justification. Upon the expiration of the two-year period, or at the end of each successive two-year period(s), if granted, the applicant shall notify the mayor in writing that the temporary dwelling has been removed and, further, said notice shall include a request for an inspection to determine that the temporary dwelling has, in fact, been removed in compliance with the permit.