(1) One or more persons related by blood, marriage, adoption or guardianship, occupying a dwelling unit and living as a single nonprofit housekeeping unit; or a collective number of individuals living together in one dwelling unit, having a relationship which is functionally equivalent to a family.
(2) The relationship must be of a permanent and distinct character, cooking as a single housekeeping unit with a demonstrable and recognizable bond characteristic of a cohesive unit.
(3) This functional family shall not include any society, club, fraternity, sorority, association, lodge, organization, coterie, combine, federation, organization which is not a recognized religious order, or group of students or other individuals where the common living arrangement or basis for the establishment of the housekeeping unit is temporary and/or of resort-seasonal character in nature.
(4) The term "family" does not include any adult foster care facility licensed under Public Act No. 218 of 1979 (MCL 400.701 et seq., MSA 16.610(51) et seq.) except an adult foster care family home as defined in section 3 of that act (MCL 400.703, MSA 16.610(53)).