I think you mean Strata Manager, don’t you Felix? Managing agent being a real estate agent.
Anyhow, ask the Executive Committee to put an item on the agenda for the next Executive Committee Meeting or ask them to hold one especially for the Strata Manager to be put ‘on notice’ to lift their game this should include the appointment of a senior, learned member of their staff to look after your strata… or you might walk.
Then if it doesn’t work, or even as well, put the same item on the AGM agenda.
Check your contract with your existing strata manager first.
See how you go.