A friend is on the verge of exchanging contracts on her leasehold flat and her freeholder has sent a consultation letter to say that exterior work will be undertaken at some time in the future with no indication of the cost. What is her position with regard to her buyer. Is she responsible for any of these unknown costs or should she advise her buyer/solicitor that they may be unknown costs at a later date? She is worried her buyer will now pull out because this is so uncertain. Any advice on what she should do please.