The mayor and recorder of the city of Philadelphia shall have power and authority to take the proof of all deeds, conveyances, mortgages, or other instruments of writing, touching or concerning any lands, tenements or hereditaments, situate, lying, and being in any part of the commonwealth, and may take and receive the same fees as by law they are now severally entitled to receive for taking the acknowledgments of the same, which probates shall have the like force and effects as if the same were proved before a judge of the supreme court, or any judge of the court of common pleas within this commonwealth.