On the issue of getting an audit.
Have the committee appoint its own auditor. The auditor that the strata manager puts forward will be their regular auditor. The auditor provides favourable audits in order to keep the strata managers business.
Secondly , the auditors appointed by the strata managers are chosen on a price. You’ll find their reports full of qualifications, to the extent that you can’t rely on anything the auditor reports.
Your own auditor will not only check your accounts, but will check the veracity of the processes used by the strata manager.
Remember that it’s usual that the accounts of your strata are managed by a person who knows how to drive the software, but has little accounting knowledge.