Except as otherwise provided for in § 33-15-4.1 — 33-15-4.4, a good Samaritan guardian shall be subject to all other duties and responsibilities required of a guardian under this title, including but not limited to the provisions pertaining the accountings; provided, that the probate court may waive any and all filing requirements and court fees associated with the guardianship, if in its discretion such waiver is warranted. The probate court may modify, amend and/or revoke the good Samaritan guardianship upon the discovery or addition of assets to the individual’s estate and/or which otherwise make it inequitable for the guardian to continue to serve as a good Samaritan guardian.