A very interesting article. I hope this will be useful for you:
What is the parental income limit for getting OSAP assistance? It doesn’t say, but that’s OK: lots of rules aren’t listed, for the good reasons you listed, mostly simplicity. The Parents’ Income dropdown ends at $170,000. Does that mean $170,000 is the cut-off? This is where you could add value: the dropdown should end with a value just over the maximum, like $180,000+. If that value is selected, the response should clearly state, $170,000 is the limit for OSAP eligibility.