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Typically, when an LLC is converted to an S Corp, the LLC is then dissolved. That requires either paying the liens or "selling" them to the S Corp. If the corporation were dissolved and the liens not paid, the lien holders would likely sue the S corp as a successor corporation.
Why would the S Corp be using the LLC at all at this point? It should be a separate entity.
You could run into issues running both companies simultaneously, especially if someone sues either business. They might try to go after the other company's assets.
The corporation should have a file with all the meeting minutes. It can be on the computer if that's how you prefer to take notes, preferably a business-owned computer. But they should all be dated and easily accessible.