There be no incentive to upgrade or maintain rental apartments/homes either with a rent cap. so everyone endsup with crap accommodation. For example some land

There be no incentive to upgrade or maintain rental apartments/homes either with a rent cap. so everyone endsup with crap accommodation. For example some landlords would put in good kitchens, flooring, insulation etc and charge a premium for renting a better home. There be no incentive to do so in this case.