Distinguishing between larger and small buildings for purposes of proving a public nuisance, requiring one of the incidents to be prosecuted as a gross misdemeanor or felony and police authorities and prosecuting attorneys to present landlords with evidence of criminal activity, documents to be considered acceptable as evidence of a probable lease violation; requiring the court to waive the customary filing fee in eviction cases, authorizing stay of eviction until conviction for the stated offense; repealing the provision authorizing neighborhood groups to bring nuisance actions(mk)