The house bought in Zhenjiang cannot be decompressed in Nanjing. At present, the network technology is not mature for decompression in different places. Entrust others to handle decompression. Housing Authority can't recognize the general entrustment of canceling mortgage after mortgage, but it can generally adopt fair entrustment. If it is not convenient to go back to your place, you can go to the notary office of your current residence and indicate the client and who the client is, in order to save money. You don't need to notarize these documents. You only need to go to the Housing Authority to handle the original certificate of the trustee. If all the information is complete, the residence certificate of household registration ID card and marriage certificate or divorce certificate are generally the most important documents.