DH and I intended to buy a house with an annexe for my DF. He moved in with us while we were waiting for sale to go through and gave up his old place. It fell through and, due to difficult times, we couldn't find anywhere else affordable. We bought a new house and DF live in our old one (which we couldn't sell due to negative equity). It's been hard paying for 2 properties and now we need to sell old house. Dh and I are torn about what to do next. Build a 'grandad' annexe (which we will struggle to afford) or leave him to work something out with council.