The tax collector typically sells tax liens at auction over the Internet. After the tax lien sale, the person who bought the lien on your home receives a certificate and along with it, the right to collect the tax debt from you, plus interest. The winning bidder at the tax lien sale will be the person who pays the taxes, interest, and costs and charges the lowest interest rate on the debt. (Fla. Stat. § 197.432)
However, if you owe less than $250 in delinquent taxes and your home has been granted a homestead exemption, the lien cannot be sold at a public auction. Instead, the tax collector will issue the certificate to the county. (Fla. Stat. § 197.432).