What expenses does the mortgage subrogation have?
The costs of mortgage subrogation prior to the new Mortgage Law, were considerably less high than the opening of a new mortgage. Since the entry into force of this law, banks no longer charge opening commissions (or they should not) if so, it will not be worth it so much to carry out a subrogation, unless we are very interested in the interest rate at which the mortgage is subject.
Bear in mind that there are very low interest rates which the bank calls “out of market” and does not allow mortgage subrogation because it does not suit them. It is more convenient to do a new calculation.
The normal thing is that the expenses of the subrogation of the mortgage are borne by the seller, since if the buyer obtains a mortgage without subrogating the seller, the seller will have to pay the mortgage cancellation costs as well.