A body corporate is a creature of statute. The first step is to consider the applicable law.
Most bodies corporate in Queensland are subject to the Body Corporate and Community Management Act 1997 (Qld) and one of five regulation modules: Standard, Accommodation, Commercial, Small, or Specified Two-Lot. Although there are similarities between each regulation module, they are unique, so you must know which regulation module applies, as it sets out things like meeting procedures, levy recovery, and management rights agreements.
Some older buildings may still be subject to the old Building Units and Group Titles Act 1980 (Qld) but this is rare. Even if a body corporate is now subject to the BCCM Act, new by-laws may not have been adopted, so you might need to dig through records to find out what law applies.
Common service provide for past clients
Advice on responsibilities of lot owners and committees
Challenging invalid meetings and motions
Research into applicable law for older buildings