Several years ago I separated from my ex. Myself and 2 children remained in our jointly owned house. We had an agreement that after 5 years the house would get sold and I would give him his half of the money. The 5 years is now up, the house has been for sale for 6 months but not yet sold. Today I received a letter from his solicitor asking for me to agree to paying him interest (bank base rate what ever that is ...) on his share of the money that he would have got already, if the house had sold. Is this to be expected? Thanks for any advice