I am a little confused by the post under this thread but here goes.

For reliable residential property ownership info check.
www.deedsearch.co.za
OR CALL ME

For reliable property valuation information.
see: www.property24.co.za (property SPI )
For municipal valuations in Ekuhuleni and Etikweni see me.

For background checks:
There is no reliable internet based back ground screening facility for SA people.
You would have to contact a company like Kroll. or my company siyeza to do a thorough background check. Criminal records alone are not sufficient.
You might be dealing with a criminal that has not been caught yet so his finger prints will be useless.