My mother lives in New Jersey and her neighbor of 43 years has decided to sell her home. After 43 years of a existing fence in which we put up and multiple shade trees, the neighbor now claims for the first time ever that the fence line and 2 trees are 4 feet onto her property. She refuses to provide any documentation, such as a current survey or letter from the township to indicate that this is fact and not just an attempt to make her property more atheistically pleasing. Last Friday, the tree service she hired came into my mothers fenced property and cut down the two healthy 40 ft.+ shade trees to the stump, which have been growing for over 40 years. This was done without permission from or notification to my mother, the homeowner. I do not know if a permit was required or obtained in the cutting down of these wonderful trees, as she refuses to supply me with any information. We had told her in phone conversations over the prior 3 weeks as well as and in a letter sent that she was not to touch the trees or the fence until we received proof from her of this claim. In a phone call received Saturday morning, she stated she had the right to cut the trees down and is going to move the fence because this is on her property, and that she does not have to present us with any proof, nor does she have to give notification to come on my mother's private property to access the trees or fence. She plans on moving the fence this week, in anticipation of prospective homeowners coming to look at the property. My poor 80 year old mother is beside herself with worry. What legal rights do we have in this situation, and what course of action can I take? What steps should I proceed with if she goes ahead and has the fence moved this week before any legal action can be taken to stop her? Any advise would be greatly appreciated. Thank you.