I live in Turkey. We had 80% p.a. inflation, where the government decided to lower the interest rates even further. Our president said Interest rates are the cause of inflation and if we lowered interest rates inflation would go down. State banks gave out house loans with 12% p.a. interest where the inflation rate was above 80% p.a.
A lot of Turkish people got their free money from the bank and invested in real estate. In Turkey, everyone evades tax and property taxes are not really collected. This in turn fueled inflation even more, sky-rocketed inequality and caused the worst housing crisis.
That is why I am convinced that property taxes are a must.
I think allowing short term rentals, and giving owners strong eviction rights for damage, illegal activity or non-payment (which we have) need to be paired with property taxes to prevent all landlords becoming large inhuman entities.
It should also be noted that if you tax everything at the value it could make, you distort the usage of valuable locations to exclude housing.
In general, everything you could propose that puts pressure on landlords leads to transfer of ownership from your (maybe friendly) landlord with 2-3 units, to larger, more professional companies who can handle the paperwork and regulations, with a tendency to tear down and rebuild something that is more expensive to rent or buy.