It will drive the prices down when enough supply hits the market. Current numbers are a joke compared to the demand generated. Leveraged loans can indeed create higher prices for a percentage of the market, but when supply approaches or exceeds the demand the "investment grade securities" will repeat the 2008 scenario. Check for example commercial properties in SF before and after COVID. After COVID (and SF city mismanagement) the supply > demand and prices went down a lot and investors lost money. Retail market is different, but the same scenario would work.