Earlier quoted context omitted.
Why does it matter what sort of entity owns a piece of property? They pay property taxes, they should get to do what they want with their property.
Unconstrained property ownership has consequences. As a society you have to understand and decide how much you want to regulate how markets and limited resources can benefit some and harm others. There is clear social harm to have cities filled with empty homes while there are people who want homes and can't afford to buy any on the market or are forced to commute long distances. Using real estate to store money and…
If you are a landlord, you need to rent the place out at the current market price. If you do not want to do that, you can sell the property and get out of the landlord business. Just squatting on it and leaving it empty/boarded up distorts the local property market and should be heavily taxed to discourage absentee landlords from interfering with local markets.