We were also able to get Inn rooms (2 of them) on fairly short notice for the week between Christmas and New Year's. If that would work for you, at least you will have something and then can waitlist for larger units. And, you may have better luck at seven months anyway.
Weather was nice, but quite cool. While many people were sitting out by the pool, we found it a little too cold for beach and pool - fine to be out in regular clothes, but wouldn't want to be in a bathing suit and swimming. I think it's been unusually cold in FL these past couple of weeks.