Your two paths to settlement
Path 1 - certificate before settlement: book a QBCC-licensed inspector once the property lists, fix any Form 26 items, and hand over a certificate valid 2 years (non-shared). Clean, and it removes the pool as a negotiation lever.
Path 2 - Form 36: give the buyer a notice of no pool safety certificate before settlement (before contract at auction) and lodge it with the QBCC. The buyer inherits the obligation with 90 days from settlement - and prices your fence's condition into their offer accordingly.
Auctions
Auction campaigns force the choice early: either a current certificate exists, or the Form 36 must be available to bidders before they sign. Agents run SEQ auction campaigns both ways; a certificate in the marketing pack reads better.
Timing for the QLD market
Inspection availability in Brisbane, Gold Coast and Sunshine Coast runs days-to-a-week most of the year but stretches before summer. Half of first inspections fail something; gate hardware and regrown climb zones dominate. List → book inspection → fix → certificate, all before a contract lands, is the sequence that never delays settlement.
Selling a unit with a shared pool
The body corporate holds the shared-pool certificate (1-year validity) - get a copy early, and if it's lapsed, push the committee now: a lapsed shared-pool certificate near settlement is a body-corporate problem you can't fix yourself.