Philip,(posted 8072 days ago)When you go into the estate agents who are 'handling' your property aim to make an appointment to view your property. Make sure that you have a witness (as independent as possible) with you on these occasions. When I went to make an appointment to view my property the agent refused to give me an appointment saying that the property had been sold. (In fact it wasn't actually sold until 3 months later.) Even though I said that I may well make an improved offer he still wouldn't budge. ( The nasty sod has since died - and there are no prizes for guessing where I hope he has 'gone to'!).
Carry out the same tactics with the agent selling the comparable house.
Keep a close eye on the market and prices round there and collect as much info. as possible. Good luck. Joy