Just adding to Whale's comment, according to the relevant Tenants NSW fact sheet, clearly states that tenants should not stop paying rent and I guess that applies to just moving out too. However, it says landlords may have to lower rents if services are reduced.
Applying for a rent reduction
The CTTT may make an order that the rent is or was excessive due to a reduction or withdrawal by the landlord of any goods, services or facilities provided with the premises.
If the CTTT finds the rent excessive due to the reduced facilities, it will make an excessive rent order. It will specify the maximum amount of the rent and the day from which it applies – for a period of up to of 12 months.
In the case of a strata building, if you can't persuade the OC to compensate you, you may as well encourage the tenant to take it to the CTTT and then apply for relief from the OC and its insurers, using those figures as the basis for the claim. I don't know how much joy you will get there as everyone else is suffering too (and you will likewise benefit when the lifts are repaired).
Anyone else have any experience of this kind of problem?
The opinions offered in these Forum posts and replies are not intended to be taken as legal advice. Readers with serious issues should consult experienced strata lawyers.