You're right, there should be rules that are enforced. I stress the enforcement here as most apartments/condos do have a noise policy. Any rental/lease agreement I have signed has a clause regarding quiet time. It is the enforcement thereof that is problematic.

Note that quiet time also extends to your neighbourhood as community by-laws have similar provisions - and complaints should be addressed by local authorities. No this is not worthy of calling 911 but most police forces have a non emergency communications phone line. This is definitely worthy of contacting either By-Law Enforcement or the Police.

The next time you speak to your property manager (congratulations for already doing so by the way), inform them that if the situation fails to improve you will be contacting the authorities.

Finally, if the management fails to address the situation you have cause to contact your Rental Ombudsman.