Getting started with tax liens?

[M Ness]

I've been trying to buy an investment property to use as a rental property for cashflow income, but unfortunately it doesn't look like I can work any deals out right now. I've got around $20,000 in cash which isn't enough to buy anything here, and I won't qualify for any sort of investment mortgage.

That said, I'm looking into tax liens as a new direction. I've been trying to learn more, but most websites professing to teach it are scam websites trying to sell a program. Can anyone suggest a good resource (or book) for learning the basics?

Would you suggest this as an option for someone in my situation? I am in Florida.

Thanks for the help.