I filed a protest on my own and got it reduced a bit....

As for Portland its downtown while business wise has been really hurt.. and its started with theBLM riots ( or should i say peaceful protest) that and those nice Antifa folks fire bombing things destroyed many many business's the inner city real estate is nothing like back east. but they have got to get a handle on the homeless.. 

Expected rent increases at lease renewal, with not a protest or counter.  

Too many "not in my backyard" locals are protesting zoning changes and city council has adopted new (stricter) zoning and permitting requirements. 

Also, ask about the tax protest process for your location. 

But I always advocate to my clients to protest tax valuations every year as they get reassessed annually.

@Josiah Scarlett It could be the pandemic coupled with the protests now.

But, I really think that you may be able to get around the boundary issue by claiming the neighbors essentially "agreed" to move the property boundary by not protesting when the building was built on their land. 

The neighbors protested the interchange emptying into the middle of a subdivision and cause the state to redesign the highway. 

That said, if a new government is formed that is pro-personal property rights and freedom of individuals and businesses, it might be worth a look in a few years. https://www.theatlantic.com/international/archive/2018/06/nicaragua-ortega-protests/562094/