Quote:
Originally Posted by
twinkiedooter
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In pertinent part......
Traditionally, for either type of trespass, some level of intent is required. Thus, the trespasser must not simply unwittingly traverse another's land but must knowingly go onto the property without permission. Knowledge may be inferred when the owner tells the trespasser not to go on the land, when the land is fenced, or when a "no trespassing" sign in posted. A trespasser would probably not be prosecuted if the land was open, the trespasser's conduct did not substantially interfere with the owner's use of the property, and the trespasser left immediately on request
This quote does not bolster your position that the land has to be fenced. You bolded text in one way; I would bold it differently:
"Traditionally, for either type of trespass, some level of intent is required. Thus, the trespasser must not simply unwittingly traverse another's land but must knowingly go onto the property without permission. Knowledge may be inferred when the owner tells the trespasser not to go on the land, when the land is fenced, or when a "no trespassing" sign in posted. A trespasser would probably not be prosecuted if the land was open, the trespasser's conduct did not substantially interfere with the owner's use of the property, and the trespasser left immediately on request."
Read this way, it is clear that the "knowing" requirement is satisfied if one of the three conditions is satisfied. In this case, the OP has told the neighbor not to go on her land, which is the first of the three alternate conditions. Therefore fencing is not required.
The next quoted sentence is applied in a different way because it contains an "and" not an "or". The trespasser probably wouldn't be prosecuted if all three conditions apply. In OP's case, although the land is open, the neighbor does not leave immediately upon request and, in fact, returns repeatedly knowing that he and his dog are not welcome.