1) Introducing a much higher tax rate for rental property income.
2) Making property taxes be reassessed every single year unless your AGI is lower than average and you are a resident.
3) Introducing a much (much!) higher tax for non-residents/foreign investors who buy a house purely for investment, and sometimes they don't even rent it out (I know a few rich folks from FAANG who bought a handful of houses in MV, and they keep them empty because they don't want the trouble of dealing with tenants, they say the appreciation is more than enough, to me it's borderline criminal).
I've seen numerous instances of those three events playing out against normal people trying to afford some housing while working a normal job. If it's not obvious, I'm heavily biased against real estate investors, because housing is a need for everybody, so the market should be much more regulated.