I can't read the text very well.
But if I were them, I'd be discussing ownership issues. Did he buy the farm outright? Does the purchase include any property left by prior owners?
Why would anyone abandon such a collection? If not stolen, the owner must've died and left no heirs. They'll be coming out of the woodwork now though, I'll bet!
I wish the article had a few more details too. Who did he purchase the "abandoned" farm from? Was it from relatives of the person who "abandoned" it? Was it a Government tax sale of some kind? Is there a chance that he knew the cars were in the garage when he bought it? Who is the buyer, and has he done farming before?
they belong to the state now.