In the ACT and likely elsewhere the tenant and the owner are held jointly and separately liable to comply with the rules (aka by-laws). So, try the land-lord as suggested.
Otherwise, its the Tribunal. My experience with the ACT Tribunal has been that it is very fair and reasonable and gives all parties time to put their case to ensure natural justice, so it takes time, but ultimately it makes a good decision.
Be sure all along to make sure the other party understands that defying a breach notice and defying Tribunal orders are both legal offences. That has not stopped one person I know dragging a matter out by non-compliance. It is worth going through the process to demonstrate to the building that you are willing to enforce the rules. Saves more grief in the long run.