Your first task is to contact the dog warden and find out exactly what the law
is in that jurisdiction. In most places it is illegal for owners to walk their
dogs on your property without your permission. However, if they are walking
their dogs on the town right-of-way near the street, it's entirely different.
Sign: how about Uncontrolled Attack Owner.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)