If he is going to be stubborn about the two acres, just make it hard for him to access the property. Put fence around the entire two acres of land, just leave him enough room to access the two acres.
Here is a link regarding lawsuits
http://www.monsanto.com/monsanto_today/for_the_record/monsanto_saved_seed_lawsuits.asp
http://www.monsanto.com/monsanto_today/for_the_record/monsanto_farmer_lawsuits_followup.asp
http://www.monsanto.com/products/brands.asp
Here is a link regarding lawsuits
http://www.monsanto.com/monsanto_today/for_the_record/monsanto_saved_seed_lawsuits.asp
http://www.monsanto.com/monsanto_today/for_the_record/monsanto_farmer_lawsuits_followup.asp
http://www.monsanto.com/products/brands.asp

