The so called "divorce bill" covers obligations the UK has already signed up to for the current budget period of the EU (https://www.instituteforgovernment.org.uk/explainers/eu-divorce-bill), sure they could just walk away and say they're not paying anything but that would have a negative impact on the future working relationship between the EU and UK. It wouldn't be a great look when it comes to striking trade deals with other countries going forward either.
So the farms, villages and houses would be bought up and the folk living there turfed out and you don't think that sort o