Perhaps more a legal question than agricultural. Our neighbor's huge walnut tree branches extend over our garage and driveway. We appreciate the shade during the summer. The falling walnuts however, break multiple slate tiles on our garage slate roof, and, seriously dent our cars parked in our driveway. What recourse do we have? Can we hire an arborist and simply cut off any branches entering our yard? We haven't yet talked to our neighbors about this, but, how much can we do without their agreement? Regards.