alt Hacker NewsPlethora of reasons, but right to title is not as black and white as anyone assumes. There is no govt ledger that keeps track of who owns what, everything is always subject to interpretation. If you own a home, you likely had to purchase title insurance. If you don’t know what that’s for, look it up. It will give you the same answer to this question.
Also seems like it isn’t clear that they ever owned it. There appears to be a mistake in the contract asserting mutually inconsistent clauses, but it appears that both parties agreed on the not-owning interpretation for nearly 30 years, which might already be a far simpler contract resolution (depending on jurisdiction, it can almost immediately binding as soon as both parties accent to that reading) than also having waited out the statute of limitations