(a) A landlord may adopt rules and regulations, which shall be posted prominently on the premises, concerning the tenant's use and occupancy of the premises. A rule or regulation is enforceable against the tenant only if
- (1) its purpose is to promote the convenience, safety, health, or welfare of the tenants in the premises, preserve the landlord's property from abusive use, or make a fair distribution of services and facilities held out for the tenants generally;
- (2) it is reasonably related to the purpose for which it is adopted;
- (3) it applies to all tenants in the premises in a fair manner;
- (4) it is sufficiently explicit in its prohibition, direction, or limitation of the tenant's conduct to fairly inform the tenant of what the tenant must or must not do to comply;
- (5) it is not for the purpose of evading the obligations of the landlord; and
- (6) the tenant has notice of it at the time the tenant enters into the rental agreement.