My father in Tamil Nadu would like to write settlement(s) on twonproperties(i.e. residential plots)

My father in Tamil Nadu would like to write settlement(s) on twonproperties(i.e. residential plots) keeping life interest on them, allowingnspecified child in the settlement, to inherit property after himEven though he might like to give each property to a different child, Inbelieve a single settlement can cover both propertiesIs there any advantage in writing a separate settlement for each property asnopposed to writing a single settlement?nnBy writing a single settlement for an immediate family member, does he save onnstamp duty as opposed writing separate settlements?nnDoes this settlement needs to be registered in sub-registrar office closest tonphysical location of each property or can in be done in any sub-registrar'snoffice inside Tamil NaduThis settlement can be drafted and registered by a document writer. Is anlawyer's review of the settlement document recommended before it beingnregistered?