Hi Lina, There are several different results depending on if the property has been the parents' principal residence. Let's say the parents has lived in the property eversince. In this situation the transfer of the house to the son should be a tax exepmt transfer as it is the principal residence of the parents, in other words no capital gains tax payable. In addition if the principal residence is less than an acre and the parents are currently living there, they should be able to transfer the property to the son without property purchase tax payable using an exemption in the legislation for a transfer from parents to child. I would guess that this type of transaction should not cost more than 500 provided there are no complications( such as mortgage assumption documentation required by the bank). There may be an issue with the mortgage company as technically they are required to be notified of any change of ownership and a change of ownership without their approval triggers a technical default under the terms of the mortgage.
