So far as I can tell, there are no technical 529 questions in this post. With the information you've provided, you do not have to do anything, and your daughter has no legal justification to "force" you. The account is under your control, and your daughter does not seem to need the funds for higher education, or be in a situation where a non-qualified withdrawal would be warranted, so I see no reason to make any changes.
So I'm not sure what your question is, @Sam. Are you looking for advice? Or maybe just affirmation that you're doing the right thing? Happy to help, but this sounds more like a domestic issue between you and your daughter than a 529 plan question.
Brian Boswell VP, Research & Development
This information does not constitute tax advice and is provided for informational purposes only. Please consult your tax advisor, financial advisor, local taxing authority, and/or plan provider or sponsor for more information.