There are no FIRST rules prohibiting it. Contact any teams in the area (237 has already been mentioned) to see their policies about the issue.
The only thing I'm worried about it that you're trying to join so late in the game, right before the build season. You've skipped the whole fall training period. Because you've been on a team before they're more likely as you already have some experience. Additionally you may have missed any deadlines regarding fees, forms (safety and otherwise), etc.
Hopefully these can be worked around, and you can join a new team.
