@ppnnkk2011 Mr Pan,
Reason being is that you need a different type of licence to perform such work:
Property Management
Currently only a registered valuer can practice as a Property Manager. The property manager ensures that the owner gets the best returns of his property investment. He also ensures that the building is well maintained, the building services well looked after and all expenses paid. He is able to optimise usage and enhance the investment in property. He advises on lease renewals, selection of quality tenants and the appropriate tenant mix.
Extract from LPPEH website:
http://www.lppeh.gov.my/role.php