So not sure when you spoke with Florida and when they indicated the change was effective.
Even if it is not effective 1/1/2021 I would file a final federal 1065; just know there may be some exposure depending on the response to my initial comment in this post.
Make sure you mark the return final along with the K-1's.
Make sure you reflect the liquidating distributions.
Make sure you understand the tax basis of any assets distributed. There are specific rules in determining the basis of assets distributed.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
