Know the township's rental paperwork
Bensalem Township's Building and Planning Department lists a Residential Rental Property License and a Rental Use & Occupancy and Inspection Requirements application, each with a fee collected at submittal. Call 215-633-3644 or visit 2400 Byberry Road to learn what must happen when a rental changes hands. The township pages we reviewed did not spell out the sale process, so ask rather than assume. Bring the current rental license and any inspection paperwork you have to the call.
