A welfare guardian shall cease to hold office—
(a) if the person for whom the welfare guardian is acting dies; or
(b) if the welfare guardian dies or is adjudged bankrupt or becomes a special patient or a committed patient under the Mental Health Act 1969 or becomes subject to a property order or becomes otherwise incapable of acting; or
(c) if the personal order by which the welfare guardian was appointed expires in accordance with section 17 or is discharged by the court under section 86.