Thank you for your question.
I am sorry to hear of your situation. There is no legal process to disown a child. That is to say, you cannot petition a court and ask for a legal document stating that you disown your child - there is nothing they can give you.
If you want to exclude them from any inheritance, make sure you have either a Will or trust set up, because without one, you would pass away being "intestate", meaning state law would decide how your estate is divided, and it is possible your daughter could still inherit in such a situation.
When you create a Will or trust, language can be added that says something like "I leave nothing for my daughter, Joan, for reasons known to her", or something similar. Adding language to your estate planning
documents makes it clear that you are aware of the person and acknowledge them and are making the choice to leave them nothing.
If you have any follow up questions about my answer, I am more than happy to assist you further.