I thought it was ok for owner/caretakers to be on the strata committee ref:
“1) The following persons are not eligible for appointment or election to a strata committee or to act as members of a strata committee unless they are also the owners of lots in the strata scheme:
(a) the building manager for the strata scheme,”
https://www.austlii.edu.au/au/legis/nsw/consol_act/ssma2015242/s32.html