No one is going to "give up" anything - in a free transaction between two parties the terms are agreed by both sides. Rents are up because tenants can afford t

No one is going to "give up" anything - in a free transaction between two parties the terms are agreed by both sides. Rents are up because tenants can afford to pay the rate to live there - ask any landlord if they want to charge more, or ask any tenant if they want to pay less. Both parties end up settling in equilibrium. The price of rent is what the market can currently bear. In your plan there are always those that will settle for less yield, or will take on a larger risk, but it has to be out of free will, not mandated by law