Synopsis As Introduced Creates the Rental Housing Nuisance Act. Defines certain real property leased for residential purposes as potential nuisance property if certain criminal activity was conducted on the property on 3 or more instances during any 120 day period as a result of any 3 separate factual events that have been independently investigated by any law enforcement agency that have resulted in an arrest, issuance of a warrant for an arrest, issuance of a ticket or citation or the filing of a police report. Provides that after independent review of any police reports and determination by the chief law enforcement officer that the activity described in the police reports as occurring upon the property meets the definition of nuisance activity and that the owner permitted the property to become a potential nuisance property, the chief law enforcement officer may require that the owner of the property or his or her or its property manager or other designee meet with the chief law enforcement officer to discuss the nuisance activity and steps the owner can take to mitigate or abate the activity. Provides that the chief law enforcement officer in the name of the municipality or county, in a civil action in a court of proper jurisdiction, may seek a declaration that the property is a nuisance property under the Act if mitigation efforts fail. Establishes civil penalties if the court determines the property to be nuisance property. Effective immediately.