Legal Question in Real Estate Law in California

I have never heard of a timeshare being assessed real estate taxes; those are normally paid through the annual maintenance fee. In any case, however, if real estate taxes are unpaid there is a 10% penalty as soon as they are late, and 10% per year interest charged. The lien for the taxes attaches immediately when due, and is cleared when paid. If the taxes go unpaid for five years, the county then sells the property based on the tax lien.

If you do not pay the semi-annual property tax on a time share it is the same as not paying it on a piece of property held in fee simple [ownership without an encumbrances]; after five years the county can take it over for failure to pay taxes and then hold a public auction to sell your entire interests.

Not sure what you are referring to by using the term real estate taxes. Do you mean the federal taxes for a sale of the property? Do you mean property taxes, which are local?