“Does this mean Smith has to convene a new Grand Jury in Florida? Are all charges related to the fake GJ now null and void?”
No. The findings of the DC grand jury were presented to the Florida grand jury and they handed down the indictments, which is why the case is being tried in Florida. The charges related to J6 are from a different grand jury in DC.
...are illegal? The DCGJ had no right to exist. Isn't that why he is filing these motions? I'm sure Smith knew this which adds a sinister twist. Did the FGJ not have legal right to access info fed to them via the DCGJ without DCGJ involvement? If they did what was the purpose of Smith doing this? Is he as daft as he looks?