Do I have to resign from the committee before I take my block to NCAT?

I have been asking for three years now that our 1983 lift be upgraded or replaced, when on the SC and off. I am now back on the SC and the lift is still a major problem. At a recent AGM, it was voted against spending any money on the lift. The meeting was full of commercial non-residents. 

Can I go to NCAT against the committee that I am now on? Do I have to resign to do so?

JT: The issue of the lift is discussed in detail here.