Transfer of property using power of attorney

Hello,
My parents have a property in rawalpindi in joint ownership, that they wish to transfer into my name. We live in the uk and my mother cannot travel to pakistan due to ill health. I am looking to get a power of attorney attested here before i
Travel with my father to conduct the transfer. Is there any specific type of poa that i need or will a general poa do? Secondly, do i need to get the poa approved in pakistan ( it will be attested by the high commission in london).