Do you still need the signature of the family members of the parties to give away Hong Kong real estate?

No need. The gift of real estate in Hong Kong is a house gift, and the house gift contract generally needs the signature of one party, because the gift contract is the expression of one party's will, that is to say, it has legal effect only after the consent of the other party. Therefore, the signature of the family members of the parties is not required. The documents needed for real estate gift include the application for registration of real estate rights, property right certificate, notarial certificate of gift contract, deed tax payment certificate, change of land use certificate and other materials.