Capitalist weirdos: The invisible hand of the free market is great at sending price signals
Also capitalist weirdos: WHAT ARE YOU DOING YOU CAN’T HAGGLE ON RENT
I assure you: I can, will, & have successfully haggled on rent.
As with all haggling, it helps if you have some kind of leverage over your target.
In my experience, most landlords are the right combination of shady + incompetent that there is probably SOMETHING illegal in every rental unit. Go find it! Imply you know a lawyer.