I have a NJ disabled person placard that is about to expire. I now have a florida driver's license . Can I get this placard renewed in nj if a nj doctor says that I am still disabled?

You have to find out from DMV for that

You have to be a resident. You can call DMV in Oakland to verify

Yes, go to dmv

Yes you can. You can get the temp placard form at the police station down the street.

I would advise you go to dmv website and look since you have an out of state license

Yes