Thus inflating prices moved faster than time went by and so prolonging rehabbing was rewarded with a 15% higher figure than originally projected.

Them not having access to our washer dryer will also probably prolong the life another 5 years.

Not sure if this is a good option for you, or just a Band-Aid prolonging the inevitable.  

Those two can directly eat at your profitability.Other downsides and risks are a prolonged rehab and of course the very hustle of the rehab.

The water heater itself has freeze protection elements within it that kick on when it drops below a certain temperature so the cold wasn't the issue as much as it was the loss of power for a prolonged period which didn't allow the freeze protection elements to function.

The whole "someone catching COVID liability" issue was a non-stop worry to them and so they didn't want to turn the property without a prolonged wait. 

I knew this plan of actions would prolong housing court eviction process (especially since one of the squatters had children).

There's no way of knowing if they intend to become squatters so due diligence requires serving a notice to quit and following up with eviction to avoid prolonged vacancy. 

This type of regular maintenance not only helps to prolong the life of the units, it also gives you(or the property manager) a chance to monitor the property.

As a buyer, based on these facts, you should consider pushing for smaller binders and for more prolonged inspection periods.