Yes, you'd have to be prepare to counter that with e.g. testimony from neighbors, or friends who heard the previous owners complain. It's not a slam-dunk, but it is an actionable tort.

Also good luck getting positive ROI on that multi-year lawsuit over things that buyer can reasonably say ‘never bothered me really, I don’t know what they’re talking about - sounds like they’re just irritated at life’. Especially when you factor in all the legal fees and several years of hassle going through the courts.

None of these things are necessarily unusual in most neighborhoods. All at once is irritating to most people - but hard to objectively prove are a true nuisance in a legal sense.