You dont need UBI for this though (not throwing my support for either side, I am sitting on the fence).

My govt doesnt restrict people to only rent from certain approved places.

If you have a rental agreement, and abiding by the rental agreement policies, then u can rent from anyone under govt assistance.

I had rented my basement out to a family under rental assistance.

The govt wrote the checks with my name on it that the renter would provide to me.