I'm not sure if they could be forced to sell those, the government could, but then that would fall under just compensation seizure. I'm not a lawyer, but it would seem under basic legal theory that you couldn't take those homes.
The Comrade Trump memes would go crazy
Not that I expect this particular strategy from this administration, but there's 'forced' as in "you WILL sell this property", and there's 'forced' as in "any corporate owned housing unit will see its property tax rate increase by 25% per year until it is sold to a person". I don't think your description could apply to the latter.