Being where you are located, and from my experiences with counterparts in PA, I suspect you have pretty similar laws to what we have on this side of the state border.
I would definitely start with a call to the Pennsylvania Game Commission. Each state has somewhat different rules, but the "game wardens" have a lot of legal power, and, at least in WV, they work very closely with local law enforcement and the state police.
When I was last having problems, I would not have wanted to have been caught on my property with any hunting or fishing equipment, without written permission to be here.
Here in WV, there are certain paperwork forms a land owner signs, and there are things you do to your property to alert all law personnel to keep an eye on your property. I believe ours are good for 90 days, unless revoked or extended.
Local law enforcement can patrol the property, and they will detain/handcuff/transport/jail anyone found on the property without proper authorization. The person/s are taken to the county lock-up and presented to the magistrate court within 24 hours.
I found the "game wardens" to be extremely professional. They saw things I never noticed. Like "there is a piece of worm here at the water's edge -- have you been fishing here with worms in the last couple of hours?" They saw evidence of trespassing and poaching that I would never have seen.
That is one more alternative -- and a good legal alternative.
