I dont know why you're being downvoted because this is legitimate concern and usually how things shake up. A law passes with good intentions meant to make it more costly for large rental companies to own more than fifty properties in order to deincentivize them from holding onto large swaths of real estate. Instead of the large rental companies scaling back purchases they just start charging more for rent to offset the new tax raising the rents. Since there's still a high demand for housing people end up paying it and it raises rents across the board because thats what the new market rate for rents in that area is now. A rental company that owns hundreds of properties isn't going to all of a sudden say its too expensive now we're selling everything and leaving town. They'll just introduce more fees, charge more for rent, or try to buy even more properties because they're making less on each unit now so they need to scale up. Thats not saying if implemented correctly the proposed tax could have a great positive impact, but judging by the rest of the comments a nuanced discussion on the topic was never the intention.