The state of Florida doesn't require property owners to plant trees on their properties. Sumter county tree planting law says only that the county "may require street trees when an adequate number of trees do not exist on a lot."
https://www.sumtersc.gov/sites/defau.../article_8.pdf article (8.d.6)
There are laws about existing trees and historic trees, but nothing saying new trees must be planted.
We had two trees on our property. One had a previous termite infestation and half of it was dead, the other one was rooting into the foundation of our garage and destroying our dwelling. We removed both of them, and I planted a lemon tree sapling in place of one of them. The sapling is now a healthy juvenile tree that had three lemons last year, and so far nothing this year. It's still under 6 feet tall though and resembles a bush more than it looks like a tree.