It's a dynamite place to start. I purchased my very first tax sale property for $175.00 and resold it a few months later for $2,500.00. However, do your research VERY CAREFULLY!!! You must pay very close attention to details. I purchased the Darius Brazandeh course for $99.00. In my opinion, it is a very good course. However, do not expect much after the sale. I guess all that "email me anytime" hyperbole is just sales puffery. In spite of this, Darius knows his stuff and his material is written in a manner that even a child could understand. Good luck with your tax sale investing!
Roger