A transaction involving a conservatorship estate which is affected by a substantial conflict between the conservator's fiduciary duties and personal interests is voidable unless the transaction is authorized by court order after notice to persons entitled to notice under Section 93-20-411(5) or a court order. A transaction affected by a substantial conflict includes a sale, encumbrance, or other transaction involving the conservatorship estate entered into by the conservator, an individual with whom the conservator resides, the spouse, descendant, sibling, or attorney of the conservator, or a corporation or other enterprise in which the conservator has a substantial beneficial interest.