When to Lodge?

A compulsory strata manager has been appointed for 12 months because the Owners Corporation did not undertake the rectification works it was required to do under an order from NCAT.  The order appointing a compulsory strata manager expires in 3 ½ months time and the rectification works may not be completed before the order expires. Fair Trading has advised that it is currently taking NCAT 3 months for the outcome of cases to be decided. If there is the need for an extension in time of the compulsory strata manager appointment, when should such an application be lodged? Who should lodge this application for an extension, the compulsory strata manager or a lot owner?