(b) A foreclosing owner shall not evict a tenant for the following actions that constitute just cause until the notice required by section 3 is posted and delivered: (i) the tenant is committing a nuisance in the unit, is permitting a nuisance to exist in the unit, is causing substantial damage to the unit or is creating a substantial interference with the quiet enjoyment of other occupants; (ii) the tenant is using or permitting the unit to be used for any illegal purpose; and (iii) the tenant has refused the foreclosing owner reasonable access to the unit for the purpose of making necessary repairs or improvement required by the laws of the United States, the commonwealth or any subdivision thereof, or for the purpose of inspection as permitted or required by agreement or by law or for the purpose of showing the unit to a prospective purchaser or mortgagee provided.