The borrower simple starts remaking payments at a given agreed upon date.

I informed my cleaners that she did not need to clean on date of checkout.

Older homes will typically have systems that are out of date - even if only partially. 

They've been aggressively paying it down and are on track to before the due date.

I am supposed to be having mediation with the public adjuster and insurance company- upcoming- but I don't have a date yet.

Every market in residential zoning has an expiration date, we just don't know what it is yet.The obvious solution is to buy in already regulated areas with tourist/commercial zoning.The returns are lower, but at least they can't go to zero overnight.

Is it possible for the investor to exit this deal at a later date?

Beyond the actual dollars. 

Quote from @Maya Cohen: I've been searching for up-to-date estimates of the cost per sq ft for new construction of SFH & MFH in Philadelphia in 2025. 

The notice should include the date of termination and the reason for ending the agreement.