Who is paying for the damage to your unit? 

What can I do for damage control and lower the bill to what we emailed him as our estimate.

But the real surprise came when I noticed a damaged door on the side of the property, far away from where they were driving us.

You need to think of your worst-case scenarios, like vacancies, rent decreasing, fines, fire/water damage, and getting sued. 

This discovery took place at the same time a hurricane struck so to me it was a nightmare to fix some of the damages it caused, amidst a shortage of labor, fortunately another investor friend helped out.

You'll get higher turnover, more damage to the properties, higher vacancies.The average BP folk on a W2 making $80k/year.

Overlooked Benefits of a cost segregation studyA cost segregation study allows for property owners to more easily write-off assets that get damaged/destroyed as the value of these assets is determined as part of the study.

If it wasn't a nonpaying tenant, it was an angry one, or one threatening to sue me, or a neighbor claiming my property was damaging his!

The property had 3 times the hidden damage as the quote given for the rehab to the property.    

Damages are tenant funded repairs.