I have heard you can protest the value of your property to keep them down as low as you can, but how effective is that?

But even if I fight the tax, once a neighbor with similar house gets sold on market value, will ruin the tax protest and will get back up again ... makes sense ?

Does anyone use an outside company to protest their annual property taxes? 

Keep in mind that you can protest taxes also.

Well there shouldn't be much lack of distressed property after the "mostly peaceful" protests. 

One consideration for markets is where you think Oak Park is going, is it on the rise economically or have the "mostly peaceful protests" put it into a tailspin? 

I don’t hate the idea of Airbnb, but there’s a neighborhood “protest” at the moment trying to prevent it.  

But a way to stem these increases is protest the valuations on all your properties every year.

Extremes bring out extremes. if starting wages are too low, get a different job or protest. 

They protest by "lying down"--doing the minimum to get enough money to work, which chips away at the bedrock of China's highly inefficient and manpower dependent economy.Dragging us back on topic, this is why Black Rock and assorting enterprises buying up huge swathes of real estate isn't some sort of signal that it's reassuring for ordinary people to be in real estate but rather a warning of the desired new regime post Great Reset.