Umrah by Proxy
Question :

Is one allowed to perform the Umrah on behalf of his deceased relatives and friends?

Answer :

Yes, it is permissible.

Hajj for More than One Person
Question :

Is it allowed to perform Hajj for more than one person in the same year?

Answer :

It is allowed to perform the recommended Hajj on behalf of more than one person in the same year, but if it is obligatory then it can only be performed on behalf of one person.