Becoming a millionaire through tax deeds

[Nat C.]

I went to the local real estate investors meetup this week. The featured speaker was talking about tax deed sales. He claims he became a multi-millionaire through tax deeds. He also said he made dozens of his students millionaires. The basis of his talk was that he buys tax deeds which return around 20% interest when redeemed. However he stated he predominantly buys tax deeds from properties where the owner has died and in 79% of cases he ends up taking title of the property. He said he could teach all the secrets but you had to come to his half day course....cost was only $70. However if you wanted to really learn the technique you had to attend his $3000 boot camp and buy his software. I don't know much in this area however I know in Miami there is no way buying a tax deed with earn you 20% interest. There's an auction where prices are bid down and you're looking at getting 1% interest. I'm curious to know what people's thoughts are on this persons claims. Possible or is it another guru scam?