As an old retired contractor, this is what I would hire and be done with it.
If it is a lawn or meadow you want as the end result, the most important issue in my opinion is how you grub out the stumps and shallow tree and brush roots.
Trees can be removed in any number of ways if time is not the issue. Removing the stumps, root balls, shallow roots and the like is a different matter. Check out the legality of burning (with or without a blower for full combustion) the future brush pile. If that is not legal or something you can manage you need to use a grinder of some sort to get the debris to a state where it is easy to load or decompose. Is there any ravine area needing fill?
As an old retired contractor, this is what I would hire and be done with it.
“... Is there any ravine area needing fill?...”
He is in Florida...The deepest “ravine” in Florida might be 5 feet deep...
The word "ravine" is not in the Florida dictionary. It is a flat, sandy peninsula. Some rolling hills in a few locales, but otherwise flat.
Lots of low areas and swamps, but no ravines.