“part 8 proceedings are wholly unsuitable for a trial on the issue of estoppel”… and a “disputed claim of estoppel should be carefully pleaded.”
“the negotiations pre-LOI”, “construing the LOI and any revisions”, and “continuing negotiations”
“Applying the test in The Indian Endurance and subsequent authorities, where one party is proceeding on the assumption that something is agreed, whereas the other party knows it is disputed, on the particular facts the other party ‘acting honestly and responsibly’ may be under a duty to make its disagreement known. The relevant mistake is not as to the amount, but as to whether there is a dispute as to the amount…”