It might be worth trying to have a word with the vendor although he may well deny any knowledge especially as it was his father's house.
Apart from the comment, did your DD get any other impression of the neighbours? I think that must be taken into account too....
If they love the house and it's right for them, they could look at fencing or possibly a wall being built.
There's also the issue is that even if they bought another property, who can tell if someone with an aggressive dog is living in that location or buy's the next door house in the future?
I'd also be curious about how the topic of aggression came up...did the neighbours say it, did your DD witness / hear anything?
How to Keep Living at Home Longer
When a political leader lies on their CV - can you trust them?


