I. No landlord shall willfully violate a tenant's right to quiet enjoyment of his tenancy or attempt to circumvent lawful procedures for eviction pursuant to RSA 540. II. No tenant, members of the tenant's household, guests, or other occupants of the premises shall willfully damage the property of the landlord or willfully deny tenants their right to quiet enjoyment of their tenancies. III. No tenant, members of the tenant's household, guests or other occupant of the premises shall willfully engage in behavior which unreasonably and adversely affects the health or safety of other tenants, the landlord, or the landlord's agent; or willfully prevent the landlord from making emergency repairs.