Yes. You can identify as "intrastate exempted" without one, but you won't be able to operate a CMV until you have a valid DOT medical card.
Yes. Always.
Yes
No. The weight determines what class licence you must obtain (there are non-CDL Class A and B licences available), and the usage is what determines whether or not you actually need a CDL class licence to operate it.
Nowhere. You need to have a drivers licence before you can get a CDL.
You might be able to get the licence, but you won't be able to get the DOT medical card, which will give you a de facto bar from employment as a CDL driver.
No
No, you do not.
Not necessarily, although you do need the appropriate class licence to actually operate it. You can operate anything up to 26,000 lbs. GVWR on a standard Class C licence. Anything above that, you either need a non-CDL Class B or A licence, or a Class A or B CDL, depending on what type of truck it is specifically, and if its use permits it to fall within any of the exceptions for requiring an actual CDL (registered farm vehicle, etc).
-spacespace- No
Yes. To have an active CDL, you need a current DOT physical, always.
Your Florida licence, a Social Security card or passport or military ID, and proof of your residence in Tennessee, such as a utility bill in your name.
To operate ANY vehicle which requires a CDL of ANY class in ALL states (this is federal law - it doesn't vary by state), the driver must have, along with the appropriate class of CDL (A, B, C), a DOT Medical Card. However, this is assuming you're were referring to a Class C CDL - several states issue a non-CDL Class C licence.