1. You can’t break other laws in exercising/following Strata law. Strata law cannot contradict say Work Health and Safety Act.
E.g. When you maintain common property you can’t save money by doing it dangerously.
2. By-laws cannot contradict Strata Scheme Management Act (or any other laws that essentially SSMA cannot contradict).
3. You can’t execute contracts / agreements on behalf of the OC that contradict By-laws (which can’t contradict SSMA, which can’t contradict other Acts/laws).
Basically just like the Act explicitly says By-laws can’t overstep their authority, everything else implicitly cannot contradict the hierarchy.
* I’m not a legal professional – this is just my understanding. Happy to learn more if I’ve got the picture wrong.