Buying real estate for the delinquent taxes alone is not as easy as you may be thinking. If you're dreaming of paying a few thousand dollars to buy a nice property, keep dreaming. With the number of real estate investors growing by the day, you can be assured that any piece of real estate that's being sold for delinquent taxes will have many parties interested in buying.
That's why counties hold tax sales. These are usually in the form of tax lien or tax deed auctions. At these sales, liens or deeds (depending on the state) are sold to the highest bidder. Because there are so many bidders at every auction and all are usually interested in purchasing the best properties, you will seldom find a deal at any of these auctions.
This doesn't mean that you can't profit off of tax delinquent property- you most certainly can. It is simply unlikely you'll do it in direct competition with large investing companies that will most certainly be bidding against you at tax sale. Don't fret-- there's another way.
What you'll need to do is get to the tax delinquent owners before their homes are lost. In many states, this will be after the property has had a lien sold against it, or has had the deed sold at tax sale. As the window of time for these delinquent owners to get their property out of tax sale closes, they'll be primed and ready to part with their deeds for very little money. Then, you just pay off the delinquent taxes, and the properties are yours!