Thank you. Based upon what you have told me, it appears that you haven’t sign this tenancy agreement but you only signed an application.
Therefore, if you haven’t sign this tenancy agreement, you can just walk away whenever you like.
If you didn’t read the agreement which was incorrect but signed it, then you are bound by it, but of course, only have you signed it.
However, if the agreement says that the landlady can give you two months notice at any time to suit her but that you cannot give notice until the end of the term (if you have gone past the initial six month period) then I think you could successfully argue that is a Unfair Term and therefore not enforceable because it is unfairly weighted in favour of the landlady.
In respect of the damp, refer the matter to the Environmental Health Department at the local authority assumed the damp manifests itself once more. It seems unlikely that during this current spell of hot weather the property is going to be damp but some buildings do take months to dry out.
If you do report the damp issue, then the landlady cannot give you notice.
I still don’t know whether you actually want to leave the property at this stage in time or not.