2. I don't even understand how a title transfer could happen without verifying ownership. Is the title system in the USA decentralized or that much different than elsewhere? i.e. Torrens-style
I'm not well versed, just passing along what I've heard from people over the years.
I have always heard the best way to make sure your title can't be stolen is to have a loan against the house so that a bank is involved. As long as a bank is involved, there are numerous additional hoops for something like that.