I so feel for you! I also have a neighbor from H**L. I have refrained from complaining about her for fear of retaliation, just as Silverbells mentioned. She has already poisoned one of my Maine Coon cats, another disappeared, and she said she was "glad" the one remaining had gotten impailed on her sharp rusty fence (which cost me $300 at the vet). She calls the town to complain about water running downhill from my property to hers (as if I can stop gravity). At one point I blew up at her and had a kind of fit!