I swear they just throw numbers out there and don't expect people to protest.  

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/

The taxing officials realize that there is no one around to protest these sorts of increases, so it is always attractive fruit to pick. 

Should I still protest property taxes and use the lower taxes it as an added "benefit" to the new buyer?

File a claim for refund.Start or continue a protest.

There were protests during the F1 roadshow and Grand Prix.Tourists Go Home signs.Maybe they should get their wish.

So I will definitely try to protest the appraisal increase.

I would start by filing a Property Appraisal Protest Application with the County for each Lot.

We've reviewed commercial contracts for sellers, foreclosures (as trustee), construction litigation, and a good friend does ad valorem tax protests/litigation.

If your planning on filing a protest and need some comps, let me know.