Pretty sure that stat is incorrect. There were years in which 1/4 of available supply was bought by investors but that doesn't mean they ever owned 1/4 of homes

Pretty sure that stat is incorrect. There were years in which 1/4 of available supply was bought by investors but that doesn't mean they ever owned 1/4 of homes. And they don't buy and sit on them. They renovated and rented or sold them. That's perfectly fine.