Credit card companies spend a considerable amount of time and money trying to work out how high they can optimize these merchant fee rates. A credit card charge is painstakingly optimized to maximize profits. Often credit card companies pay a portion of these fees because the competitive market will not shoulder the burden - customers will move to a cheaper credit card, which is why cards with high fees often try to entice customers with rewards programs).
Without the ability to influence demand, the seller can either eat the cost or remove themselves from the market, my question is how does increasing the tax move the needle on demand knowing that any rational acting landlord is already acting to maximize their return on investment? Are you suggesting that they’ll copy credit cards and increase rates but offer some bonus program to increase demand? I’m not convinced that would work.