Startup/Venture Capital lawyer here (but not your lawyer). Winding up a corporation can take a little time, but it's generally not terribly complex. It's mostly filing a few forms with the state. However, there are more considerations that you'll want to make as you decide what to do - one question being, "who is liable for the acts of your company before the CA LLC existed?" Entities, when properly used, can shield you from personal liability. But if the entity is no longer in existence, then you may end up being personally liable for any acts (without the proper planning).