Large corporations do not buy much real estate. Look how many homes Black Rock owns versus the total housing stock. Many people incorporate to limit liability.

Large corporations do not buy much real estate. Look how many homes Black Rock owns versus the total housing stock. Many people incorporate to limit liability. It is also very cheap to spin up new corporations. So there is nothing stopping a person from being part of unlimited corporations that own your capped number of homes. The real issue is lack of supply and your enemy there are single family home owners. They do not want density near them. The people and corporations who subdivide their land up for renters are generally very happy to build more units because they like money. Your proposal, if it worked, would make the situation worse.