Hi Trevor ! I am looking often here lurking... Firstly, someone mentioned earlier that there is no milking parlour at the new farm, so it will need to be built before they can move the cows. The other option could be to milk through what is known as a bail, which is a temporary milking parlour. I think you can hire them, which a farmer might do if he was upgrading an existing parlour rather than building a new one in a different place. DH says milking through a bail is a pain in the bum and to be avoided if at all possible. Alternatively perhaps they would time the move so that they stayed at Brookfield until about July, dried off all the cows and moved before calving, into a very speedily built parlour. Of course that would mean Rooth wouldn't be with Heather just after Christmas as she might have imagined... But we all know she's probably going to SOHMC anyway...
As regards contracts... I don't know where they sell their milk, but a lot of milk processors are national - Muller Wiseman, Arla, Dairy Crest. First Milk etc so perhaps moving a contract with them wouldn't be too difficult. If they have to move processors they would have to give notice on their existing contract. Most milk contracts tie you in for a relatively long period, often a year. I wouldn't fancy trying to get a new contract at the moment either, with the milk price the way it is. Some processors aren't even recruiting at the moment.
As far as their other crops, I don't suppose they have forward sold them, though some farmers do. And I think they sell lambs in the local market, so no forward commitment there.