My question involves estate planning in the state of: South Carolina. I did a will, poa, living will, and medical directive on Legal Zoom. I need to make changes to the executor, poa, and person responsible for medical decisions. Can I do this myself and have it notarized or must I go to Legal Zoom and make the changes there? I will have to pay in order to make the changes online. If I can legally do this myself I'd rather do it that way until I absolutely must revise it online.