How to prepare for lead dust wipe test in old bldgs, Philadelphia

[Jeffrey A. Rupertus]

Hello,

With the new laws in Philadelphia, more properties we manage are being required to have a lead dust wipe test prior to having the owners being able to renew their rental license. We've agreed to help the owners prepare for these tests but have not had to actually do this yet. Until now. We are looking for some guidance on how best to prepare for these tests and if anyone in Philadelphia has a cleaning service or contractor who is experienced in doing this preparation.

Most of the properties we manage are old and have old wood windows, which we've been told is usually where the test is performed. Thanks in advance for any guidance.