your town hall is it refer to AGM/EGM?
If this is 1st AGM of JMB/MC, it should arrange by developer, if this is 2nd or subsequent AGM for JMB/MC, should be arrange by JMB/MC

As refer to SMA Act 2013 Second Schedule, Section 11, EGM

The JMB/MC shall convene an EGM with the condition
1) requisition in writting made by the proprietor who are together entitled to at least one-quarter of the aggregate share units
2) As directed by COB
3) or such other occasion as it think fit.

For your situation, you may try to gather a group of proprietor (1/4 of share unit) and issue written request to JMB/MC to convene EGM to discuss on all the urgent issue as mentioned by u.

Please read Section 11 for more details.
TQ