It doesn't seem liquid enough to justify an increase in cost of rent the instant minimum wage goes up or UBI is implemented. My point is that a lot of these "markets" are really just price controllers setting price as they please, and landlords particularly feeling like they're special and get to lay claim to some arbitrary percentage of people's income. Which, for structural reasons, they can do.
If you give everyone $2000, then landlords can successfully raise prices because now people can pay that much, and as mad as they'd be about their UBI going straight into the hands of businesses, they're unlikely to go homeless or stop buying food to protest it, so they'll pay it. That ability and willingness to pay is called demand.
So the inflationary effect will probably be limited to low-income housing, which is already heavily subsidized by taxpayer dollars in the US, arguably even more inefficiently than the situation under a hypothetical UBI. It will probably be coupled with a deflationary effect at middle-to-upper income housing, depending on the nature of the benefit and the structure of the taxes used to fund UBI. If the policy is structured competently, there’s no reason that it is necessarily inflationary as a whole.
Anyway, my point was rather to address the fact that the other commenter didn't seem to understand what "demand" means.