imminently ready to exchange on sale (as the vendor) except for a very unreasonable co-freeholder who is not responding to any requests to sign the LPE1 form ,or show proof of their insurance. this is a probate property and we are aware the insurance should have been for the whole house(terrace split into two flats up and down stairs). we have offered to pay solicitors costs and emailed all relevant forms to him, saying it is a matter of urgency now(he has delayed any answers for 3 months) and he says he is going on holiday -meanwhile the sale is going to fall through. the solicitor says we would have to take him to a court declaration which could go on for months and the buyer will be long gone by then,-does anyone have any advice?