Welcome to Canada's first fully online tribunal!

The Condominium Authority Tribunal, or the CAT, is an online tribunal that helps to resolve and decide condominium-related disputes in Ontario.  The CAT has developed an online dispute resolution system (CAT-ODR) to help people resolve their disputes conveniently, quickly and affordably, while encouraging everyone to work together in harmonious condominium communities.

The CAT Process

This information describes the CAT dispute resolution process and tells you how to file an application, how to join a case, and what happens in each of the three dispute resolution stages. 

CAT Rules, Policies and Guides

The CAT's Rules describe how the CAT operates, and what you need to know or do when you are involved in a CAT case. 

CAT Members

The Members of the CAT have been appointed to the Tribunal to mediate or to hear and decide on applications. This page includes bios on the Chair, the Vice-chairs and the Members. 


File a new tribunal case

Please note that currently you can only file a case for records-related disputes .

Join a tribunal case

If you have been asked to join a tribunal case, you need to register for a personal profile to join.

Access an existing tribunal case

If you want to access an existing tribunal case, login with your existing personal profile.