(2)Before making any order of substitution, the Magistrate shall send a notice to the person upon whose petition the reception order was made, if he is alive, and to any relative of the lunatic to whom, in the opinion of the Magistrate notice should be given ; the notice shall specify the name of the person in whose favour it is proposed to make such order and the date, which shall be not less than twenty days from the sending of the notice, upon which any objection to the making of the order will be considered.