Question about signs being posted on condo buildings.........??

I understand that if you wish to sell or rent your condo, you are not allowed to put up a sign
on your building.  What would happen if someone did it anyway (assuming their condo association,
for whatever reason, didn't mind?)

What action (if any) would be taken against the person placing the sign, and/or their
condo association?  And by whom?

It appears to me that if people choose to break any bylaw in Century Village, nothing is done about it. People may complain and rant and rave, but the offender continues offending.

The only bylaws I haven't seen broken are real estate signs being placed, and a sign is a sign, so you know why I am asking.