The lawyers on here sometimes give conflicting answers. (I am not going to trawl through all the posts to give quotes.) One question was that a person was not happy as all the facilities had not been provided and some snags. part of the answer was that they could lose their 30% if they did not complete.
My other question was if a buyer has a bank guarantee and (as in the case of Claire) there hasn’t been and won’t be anything built why cannot the bank who issued the guarantee be approached for the money? they would appear to be ultimately responsible. I guaranteed a mortgage for my son in the UK. if he didn’t pay they would come to me for the money.