They will need to, and the municipalities and private industries will cry like a new born with a month old diaper. The board is going to insist on collecting every dollar they can in back taxes, electric bills, water bill, IVA they can find, and it makes sense, for some reason the government in the past could not be bothered with tax collections.
There are a lot of properties in PR that are not in CRIM and almost all of the ones in CRIM have such low property value assigned to them that they will never pay property taxes. But there is a good chance that in a year or two the board is going to require that all those properties be re-evaluated and people will be slapped with a property bill.
My brother has 9 acres of land, they are not used, he pays something like 1,000 a year for those 9 acres in taxes. My lot here in Massachusetts is 1/3 of an acre and is valued at 170K, that is just the land regardless of the house which is a separate value.
A lot of people are going to be upset over the next 3 - 5 years, but they should take their frustrations by going after the people that got us into this situation, and start jailing them all, we need the audits and we should do what we can to get those audits going and the corruption acts in front of the courts.
Hopefully they are prosecuted in federal court, I don't trust that local courts would do it right as there is corruption there also.