We haven't heard from Jim much recently so who knows how often he talks to anyone?
There was definite frostiness between Jim and Shula when he was living at The Stables having first moved to Ambridge. Their relationship subsequently improved but I can't remember if that was just due to the passing of time or because of a specific incident. Don't think Jim likes Alistair much, and I can't say I blame him.
As for Lilian and the Dower House, I think the thought of Justin buying, and therefore owning, it will be what makes her realise she doesn't love him enough to be marrying him. She loves that house and it's been her home for a long time.
After Justin's comment last week that she doesn't need Matt to pay her back because she's with him now, I thought it was out of order for him to demand to buy it from Matt the trust. Shouldn't they at least be buying together? In name even if it's his money? I thought he was pretty unpleasant about the whole thing.