Except as provided in § 10–806 of this subtitle, if it is not established by clear and convincing evidence that one of two co–owners with right of survivorship survived the other co–owner by at least 120 hours: One–half of the property shall pass as if one co–owner had survived by at least 120 hours; and One–half of the property shall pass as if the other co–owner had survived by at least 120 hours. Except as provided in § 10–806 of this subtitle, if there are more than two co–owners with right of survivorship and it is not established by clear and convincing evidence that at least one of the co–owners survived the others by at least 120 hours, the property passes in the proportion that one bears to the whole number of co–owners.