You will require a permit in Lee County to remove a protected tree. If your tree is not a protected tree, you will be ok to remove it without a permit.
All developments that require tree removal will need to apply for a permit.
Any trees that are dead, hazardous, or pose an immediate threat to persons or property can be removed without a permit.
You are advised to talk to your local certified arborist about this prior to removal to get their opinion.