✔ 最佳答案
For property transaction, it is a matter of mutual agreement between the buyer and the seller. So, a notification via the representing solicitor has to be made to the other party for such intention. The seller has to check for the delivery of the property and the buyer has to check for the funding arrangement, including the timing of the mortgage by bank.
So, you better consult your lawyer for this arrangement of early completion of this property transaction.