What can the neighbor do to your side of the fence?

Your neighbor generally has limited rights regarding actions on their side of the fence. They can maintain their property, which may include trimming branches or roots that encroach onto their side, but they cannot damage or alter the fence without your permission. If there are disputes about property lines or maintenance responsibilities, it's best to communicate openly and refer to local laws or agreements. Always consult local regulations to understand specific rights and responsibilities regarding fences.