If I understand what you're saying correctly, he's trying to take two acres of "your" land through "Adverse Possession".
Real estate laws are different in every state.
https://www.bankrate.com/real-estate/adverse-possession/https://www.nolo.com/legal-encyclop...y-based-adverse-possession-missouri.htmlOf course, there are hurdles to clear before someone can claim a piece of Missouri land using this theory. For one, the burden of proof to establish a claim of adverse possession is on the trespasser. In other words, if you hold legal title to a piece of land, you are its presumed owner until and unless the adverse possessor can come up with enough compelling evidence and arguments to convince a judge to grant ownership over all or a portion of it.
I know that it used to be that when someone maintained a property without ever asking permission and the real property owner never spoke to them about it was when it was granted.
If you ever discussed his maintaining it though the years and you gave him approval to maintain YOUR property that ends his right to claim title to it.
You were simply giving him permission to cut YOUR grass because it made his property next to it look better.
At least that's what I was taught when getting my real estate license in MO about 30 years ago.
A local real estate lawyer is who you need to talk to about it.
