It's silly to think that a property owner will just eat those increases indefinitely- voting to increase taxes is the same thing as voting for your own rent increase. 

The contractor can ALWAYS put a lien on a property, so the investor can't really dodge the bullet indefinitely. 

Yup especially in California where evictions are banned indefinitely.

Does the fact they helped him get a loan to purchase the car make the purchase legally binding?

I was supposed to close March 17, 2020 and we went on an indefinite hold until June.2.

Washington Post Aug 3 2019•Even amid an overall leveling off of U.S. auto sales, a growing number of high-paying jobs are being spawned in metro Detroit by carmakers and their suppliers, including the greatest amount of new investment in automotive manufacturing capacity in Detroit proper in at least a generation.”

Please correct me if I'm wrong, but are investors who intend to hold onto properties (vs flipping them) just refinancing, refinancing, refinancing indefinitely?

I agree with other comments that this is a real hardship and that people are not going to put up with it indefinitely.