If you really want to do this, there is only one way, that is, to transfer the part of the property rights that the owner wants to remove to the remaining party by using the procedures of buying and selling second-hand houses, and then go to the bank to handle the mortgage loan procedures for second-hand housing transactions. Then, the remaining party must meet all the conditions of the mortgage loan. This method is not easy to pass the audit, because it is equivalent to one person bearing the repayment ability of two people.
Or transfer the house to a third party and apply for a second-hand housing mortgage loan in the name of a third party, which is relatively easy.
The handling fee is the tax that should be paid for normal house transfer, because these taxes are local taxes, which vary from place to place and should be calculated according to the provisions of the local local tax bureau.