Let corporations build them, don’t let them own them.
If they build a 100 unit apartment building, don’t let the corporation just rent them all out themselves.
Force them to be sold to individuals. That keeps the overall condo prices competitive, and then people who buy them can then rent them out on an individual basis for those who prefer not to / can’t purchase a condo outright.
Limit how many residential units a corporation can own and incrementally increase taxes for every unit above that limit.
Limit how many corporations one person can own. No more of this bullshit 20 numbered companies in one person’s name to get around shitty business practices.