Thanks for your enquiry.
In situations like yours, the respective Solicitors would normally only agree to complete once the residing party (your ex wife) was also ready to complete on their related purchase. This is because once the property has been transferred to the one party (you), the other party no longer owns the property and is under a duty to vacate. Was this not discussed/agreed?
Thanks for your reply, which I note you answered by way of a new question.
Has your Solicitor explained to you why he/she sent the monies to your ex wife's Solicitor, without obtaining confirmation that she would indeed vacate on the day the monies were sent? Kind Regards Al