I understand that. Your responsibility was to not take unreasonable risks, under the circumstances. If you did your due diligence and thought this was a good investment, and this woman knew those risks, then you should be fine.
In terms of documentation, get what you can find. So long as you didn't destroy or otherwise lose the documentation to hide evidence, you should still be okay. If you did, however, then there is going to be a presumption that the evidence was against you. This is whether the judge believes that you destroyed it or lost it because it was bad for your case. If he doesn't believe this, then you should be okay.
In terms of what will happen if you don't win, that is contingent upon this woman "piercing the veil" of asset protection (LLC and LP are limited liability organizations and so need this doctrine to get to personal assets). If she is able to pierce the veil, then she can come after personal assets. But if not, then she can only go after company assets, and as the companies are dissolved and have nothing, then there is nothing that she can get.
Hope that helps. Good luck!