In the event any from the legal heirs is in abroad, he / she can authorize other legal heir to collect allocation / intimation / allotment / transfer letter on their own behalf. The authority letter needs to be attested by concerned Pakistani Embassy / Consulates or Solicitor/ Notarized. From https://laneoazzd.vidublog.com/29083196/about-property-disputes-lawyer-in-dha-karachi-pakistan