Dont think Claire has any proof that it is the neighbour. And the neighbour is likely to deny any involvement.
Could it still work?
Well, yeah! Sounds like there already are issues to resolve there, (and questions regarding the malicious actions can be brought up). I really cant recommend this enough, (not just in this case), the amount of quarreling neighbors who come together and, in this setting, learn about the
other side - and then find a mutual understanding, is higher than you'd think.
We deal with everything from that f*cking neighbor, (a literal book of ours), via petty theft and criminal cases to, not sure what word to use.. heavy things. Anyways, that might be for another thread.