We signed a 12 month shorthold tenancy just over two years ago. We have not signed anything since - it would have tacitly renewed at the beginning of April. We are on good terms with our LL so had no concerns.
LL is now selling to cash buyers who have a very inflated idea of the rental worth of the property. They have said they are raising our rent by 30% (EA has massively overestimated the rental value!). It will be their family home but they are overseas for another 12-18 months so definitely want us to stay for that time.
I can't work out if our contract tacitly renews for another 12 months, or just rolling months with 2 months notice.
Also, they are sending round surveyors. I have a stressed teen with GCSEs who does not know we are moving and I don't want to tell him until I can say what our plans are. Plus, they want to do extensive damp work in the bedroom my 4 yo uses which will involve him moving out for a week, paint, dust etc. It will be the second time in 12 months. The sale is contingent on this happening and quite honestly, under the circumstances, I feel like saying no. We have been very reasonable and offered a rent increase including waiving our statutory two months notice at the lower rent.
To compound the situation, we are trying to buy the house ourselves, although we would need a mortgage and more time - so it's hard to compete with their cash, but I do feel resentful, which isn't very helpful I know.
Any advice? 