I work with a fantastic solicitor in the local area so I can put you in touch with them to discuss things further.
They will help you in every aspect after your sale is agreed, they can help you to open your bank account, obtain an NIE number and will even help you to sort out your electricity, water etc. They will also help you after the sale if you need it for things such as non-residents tax, wills and many other services.
A really fantastic all round service! Ask me for more information!