However, if a family member has TPS status, they are included as members of the family who can live in public housing, but benefits exclude them as beneficiaries (i.e., subsidy is reduced or subsidized rent is prorated to exclude them).
Currently, I think undocumented immigrants are also permitted to live in public housing with eligible family, but rent is likewise prorated to exclude them.
At least that's how I understand it.
So yes, if abuela is undocumented or TPS, under the rule change, she won't be able live with eligible family in public or subsidized housing. I guess either they all go (if her presence is essential to the family functioning as a family) or she must go (which is undoubtedly impossible for most).
Add to that the fact the felon's regime is hellbent on stripping legal status from people who are documented as asylum seekers or TPS. As far as I can tell, the goal is to turn these documented immigrants into undocumented immigrants by fiat.
Some, but not all, of these actions to strip legal status are blocked as they work their way to SCOTUS.
Given that the felon's ICE and border patrol are already denying due process (that even SCOTUS affirmed) as a matter of course, we are in a lawless, amoral, and deeply Un-American place.
Tragically, even rights affirmed are denied to all but those who manage to get access to a lawyer (which is also denied as a matter of course). And even the few who manage to secure representation have an obscenely unjust and lengthy process to navigate to even attempt to secure their right to due process.
The point is to render people so afraid of being picked up and sent to detention, or so hopeless and immobilized in detention -- with moldly food, tainted food, and rampant infectious disease -- they don't even try to stand up for themselves.