recourse varies by state- liberal states usually offer chance for owners to redeem the lien, at a profit to the lien buyer
This guy, yesterday (and I've known him casually for a while, being that he owns one of the houses in the neighborhood that he rents out) -- he was saying that there used to be, in Oklahoma, a period of time for recourse, but that it's been changed now and that now they give him the deed (anywhere from right then to within 48 hours), and there's absolutely no recourse by law, for the former owner. He was quite emphatic about that to me (seems he made a big point of it, too ... LOL ...) -- in that "It's over! It's done, and there's nothing the previous owner can do about it!"
I'm not kidding... he got excited about that ... LOL ...
He was also saying that "This is a great time to make money!" (talking about picking up stuff like this at tax sales).
So Oklahoma is a good state in which to practice predatory buying of real estate with the intention of turning the owners into tenants or evicting them,
the law must allow easy fast evictions, too ... not everywhere does
This is a real hard way to make money, unless you have the stomach for it. Lots of human misery for sale and money to be made from it
He really needs to insure those homes as soon as he buys them.