We are buying a Victorian terrace and on advice of surveyor had an independent damp survey. This has shown that the property needs more ventilation (uncovering an airbrick etc) and also rising damp in some walls including a party wall. The specialist recommends a damp course to be done asap which would need agreement from neighbour. Quote for dc and ventilators etc comes to around 3K. This feels very daunting as means doing work after moving in and who knows if the neighbour would agree. Buying for asking price on understanding there was nothing to do. Any advice - renegotiate? Or walk away...