Adverse possession. My friend had bought a trailer court and a trailer had been parked thirty years when a neighbor demanded it be moved or I’ll sue even after told the trailer is not owned by the trailer court. The judge said that the trailer does not have to move by the court and used Adverse Possession.
It’s not adverse possession because the fence was placed off the property line by consent of the two owner.
It is, however, generally a binding agreement to put the fence off the line, although the party complaining can put it on the line, at its costs.
I have two reasonably-sized ranches in West Texas and New Mexico, both measured in multiples of tens of sections (a section is a square mile). It’s old, cotton, and cattle country.
I had a fence line that was a solid 1/4 mile off the line, that dated back to the 1920s. There was a filed agreement to have the fence off the line, due to a rocky gulch that made it difficult to put in a fence.
New owners of the neighboring ranch put in water wells on my land to sell to frackers. Said, no, that’s my water. They claimed adverse possession, lost, and I got 10 free massive water wells. Sold the water at .40/bbl and changed the fence.
Planted cotton just to let them watch it grow with water they drilled for me.