The incorporated City of Butler is in Butler County; Summit and Center Townships are separate nearby municipalities, not neighborhoods within the City. The City is also the county seat. Confirm the parcel’s municipality before relying on a city permit, tax, or rental route. See the Census incorporated-place record and the City’s local overview.
For a rental inside the City, the City Treasurer’s landlord information calls for an annual occupancy report and an update after a tenant moves in or out. That is City reporting, not a sale inspection or a status determination for a particular parcel. The City publishes separate residential and commercial building-permit routes, and Code Enforcement receives written property-condition complaints. Ask the City about an actual notice or address; these office routes do not establish a sale-specific inspection requirement.