Duration of orders for maintenance
7.—(1)  Except where an order for maintenance is expressed to be for any shorter period or where any such order has been rescinded, a maintenance order shall expire —
(a)if the maintenance was unsecured, on the death of the applicant or the respondent, whichever is the earlier;
(b)if the maintenance was secured, on the death of the applicant.
(2)  Where a maintenance order was made against more than one respondent, the death of a respondent does not affect the liability of the others to continue paying maintenance to the applicant.
(3)  The applicant may apply to the Tribunal to re-apportion the liability among the surviving respondents on the death of a respondent.