(1) The principal residence of a resident who is married or in a life partnership and does not permanently live separately from his or her family or life partner is the residence used most by the family or life partner.
(2) The principal residence of a minor resident is the residence used most by the persons having the duty of care and custody of the minor; if they live separately, the principal residence is the residence of the person having the duty of care and custody which is used most by the minor resident.
(3) In cases of doubt, the residence used most is the one where the resident’s personal relationships are focused.
(4) If the residence status of a resident who is married or in a life partnership cannot be established without doubt as per subsections (1) and (3), the principal residence is the residence as defined in section 21 (2).
(5) At the request of a resident living in an institution serving persons with disabilities, the residence as defined in subsection (2) remains his or her principal residence until he or she has reached the age of 25.