If you are trying to rent right now the going rate seems to be 2 months free for a 12month contract. So almost 20% off.
I think the reason for the 2 months free is to avoid various rent controls. If they actually gave 20% off they couldn't put the price back up 20% in the future as easily.
I think the reason for the 2 months free is to avoid various rent controls. If they actually gave 20% off they couldn't put the price back up 20% in the future as easily.