Please read the rules here.

But what exactly happens in the year the child turns 18?

When you get an owner that replies, FOLLOW UP.  

For many years, I've been studying and following this community to dive into the world of real estate as an investor.

Without a shop, you can just say, “Here’s where you can find the toy” and skip the warnings.2.

Your photography isn't the best.

Just need the land.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

#2...not the zoning, although that can be important too, but the actual property code in the Florida statutes about tax liens and the process. 

This will allow you to get the sheriff involved immediately.If you are already past the notice period then you will probably have to follow whatever state laws are in place for the notification period and possibly the eviction process.