The City of Philadelphia requires that each "rental unit" be lead certified (i.e a single-family house is 1 certification, a duplex is 2 separate certifications, a triplex is 3 separate certifications, etc.).
The City of Philadelphia requires that each "rental unit" be lead certified (i.e a single-family house is 1 certification, a duplex is 2 separate certifications, a triplex is 3 separate certifications, etc.).