What policies which would make owning a single family rental less attractive than owner occupied? Non-owner occupied property tax? We already have mortgage inte

What policies which would make owning a single family rental less attractive than owner occupied? Non-owner occupied property tax? We already have mortgage interest deduction, but many of these houses are purchased in cash, and when interest rates are down at 2-3%, that’s not a significant enough difference. An asymmetry of prices for owners versus landlords must be possible. Why don’t we see these policies in practice?