> how is ownership established if there is no single source of truth?

Oh, boy, let me tell you it is very disconcerting to pay a title company to do a search of legal records on a property, and the only guarantee they offer in some states is that "we didn't find anything suspicious but there is no guarantee that someone from the past won't pop up with a better claim to ownership. You can't hold it against us if that happens." How is it that most people making the biggest purchase of their lives are going along with that? I'm definitely not okay with it, but sometimes you can't buy property without accepting it- no title company will offer a stronger guarantee.

For details, I'm talking about how in some states the Special Warranty Deed is the standard for real estate purchases: https://www.legalzoom.com/articles/what-is-a-special-warrant.... A title company will guarantee that the current seller hasn't entered any agreements that might legally obligate you (such as offering the property as collateral for an outstanding loan), but they are very clear that actions of previous owners are not included in this guarantee. So there is no single source of truth- we just hope that we're not part of the tiny percentage where the special deed is insufficient.

Edit: for context, there is a distinction between title insurance and the deed itself, but the title company is only offering insurance on the deed, so if the deed only covers the previous owner then the insurance only covers that too.

  > You can't hold it against us if that happens
No, what you describe is the entire purpose of owners title insurance. The idea that it “only covers previous owner” is false, it covers a wide variety of title defects.

I was getting ready to debate you, but I'll admit that I'm mostly wrong about title insurance.

Special warranty deeds only cover the current seller, but title insurance can defend against prior ownership claims. I will note that just because title insurance guarantees they will defend against ownership claims, they don't guarantee it will be settled in a particular way. There's a theoretical possibility that an agreement can't be reached that keeps you in the house you thought you bought legally- like in this story the buyers got their money back but didn't keep the house that wasn't theirs https://www.thetitlereport.com/Articles/Title-Insurance-at-W...

> I will note that just because title insurance guarantees they will defend against ownership claims, they don't guarantee it will be settled in a particular way.

Of course, insurance doesn't guarantee you won't have a covered loss. Insurance compensates you if you have a covered loss.

When I've purchased real estate with title insurance, the offer from the title company has been pretty specific about what risks are covered, what risks are specifically not covered, and what the dollar limits are for covered losses. There's a lot of paperwork involved in purchasing real estate, but the title report and the title insurance offer are worth taking the time to read.

I've read the terms of title insurance and no, you can't hold them liable if it turns out you don't get the property as intended. It's basically useless.