Posting here for traffic and mainly because I didn't get many responses in the property section. Please see my original post which explains the background.
www.mumsnet.com/Talk/property/4373293-this-whole-process-takes-years-off-your-life-doesn-t-it
Update - the mortgage lender has now confirmed that they will need the solicitor to confirm in writing that she is happy with the second policy and to ask them to review my case again, however the damage might have already been done. Even if the solicitor confirms that she approves of the new policy, the lender might not be happy now that she's flagged these issues up, even with a suitable policy in place. This solicitor was recommended to me but has never dealt with anything like this before and does not live local to where the property is. I spoke briefly with another solicitor today who lives local to the area that has dealt with lots of houses with this issue before, including one on the same street that sold a couple of years ago. Even if the new solicitor intervenes now it probably won't help as my current solicitor has probably scared the lender off. The solicitor has advised me to ask my mortgage broker to find a new lender and before even applying, to confirm if they will accept the indemnity insurance (there are lenders out there) and if they say yes, then to get a new solicitor, preferably the one I spoke to today and it should all sail through with no issues. Does that sound reasonable? Before any of this, I would need to ask if the vendor is even willing to wait whilst I start the whole process from scratch. I stand to lose so much, through no fault of my own. So so angry.