Existing tenants, if offered rent lower than market rate (e.g., $700-$800 vs. $1000) will likely accept to avoid moving costs and time.
"if you can keep their rent lower than what it would be if they had to move cuz they don't want to move moving costs money moving costs time and then they're going to have to go pay a th000 bucks somewhere else so if they can stay not spend the money or the time and pay 800 or 700 they're probably going to be willing to do that"