Because the legislature has passed protections for unpermitted units, a tenant should not be able to make any claim if it is a safe unpermitted unit.i agree with your sentiment on getting the ADU permitted, but not for the reasons you stated.  

On the other hand, this phrase is often used by the likes of Uncle G (who, having an accounting degree, should really know better) to suggest claiming personal expenses as business deductions.

I would imagine the best actions would be to immediately fire the management company, pass the keys onto a new one, sue the old one in small claims court for the listed damages.

Cost Overruns: After the final payment, the contractor claimed there were additional costs of $60K.

They claim a 3/2 can rent for $2,300.

@Angelo Llamas Even if your rental property breaks even, you should still claim allowable tax deductions like maintenance, travel, insurance, property taxes, and depreciation.

Shoddy work is not an insurance claim or anything. 

Do not use a gift letter/claim it's a gift if it's not a gift.

These risks can happen to anybody no matter the type of investment they make like your investment house can blow up and insurance doesn't accept your claim, you could get hit by a bus, and boom no money, and so on. 

Temporary Housing Directory is another site I’ve used for insurance relocation claims