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What benefits do “title search companies” have over physically visiting a land records offices?
Basically what @littleadv said, but let me amplify what I think is the most important point. As he/she says, one thing you're paying them for is their expertise. If the title on record at the county office had a legal flaw in it, would you recognize it? In a way your question is like asking, Why should I go to a doctor when I could just make my own medicine out of herbs I grow in my garden and treat myself? Maybe you could. But the doctor and the pharmacist have years of training on how to do this right. You probably don't. Is it possible for you to learn everything you need to do it right? Sure. But do you want to spend the time to study all that for something that you will do -- buy a house -- maybe once every ten years? Will you remember it all next time or have to learn it all over? But really most important is, title companies offer insurance in case the title turns out to be flawed. That, to me, is the big reason why I would use a title company even if I was paying cash and there was no bank involved to insist on it. If there's some legal flaw in the title and it turns out that someone else has a claim to my house, and I lose in court, I would be out about $100,000. Your house might be costing you much more. That's a huge risk to take. Paying the couple of hundred dollars for insurance against that risk seems well worth it to me. And by the way, I don't think the "due diligence" is easy. It's NOT just a matter of making sure a title is really on file at the court house and has the proper stamp on it. It's all about, Does someone else have a legal claim to this property? Like, maybe three owners ago someone forged a signature on a deed, so the sale is fraudulent, and now the person who was defrauded or his heirs discover the issue and claim the property. Or maybe the previous owner failed to pay a contractor who did repairs on the house, and now he goes to court and gets a lien on the property. It's unlikely that you have the expertise to recognize a forged document. You almost surely have no way to recognize a forged signature of someone you never met on an otherwise valid-looking document. And you'd have to do a lot of research to find every contractor who ever worked on the house and insure none of them have a claim. Etc.