Periodic tenancy; holdover remedies.

The sewer backed up in the house I have rented and the entire first floor bathroom, bedroom, living room, and garage need remediation.

Either way, you could probably remedy what you see as unfairness by taking a management fee as part of your compensation.

There was surface mold in the attic only above the pool which was remediated and sealed in 2013 with a 10 year warranty - when we the owners purchased it and lived there. 3.

The Plan: I need to get an estimate from a reputable mold remediation company to see what the cost would be, but even at $20,000 (a hopefully high estimate) the numbers look pretty good to us.  

Hi Pat,These "special assessments" are usually to remedy deferred maintenance.

Figure out what it would cost to do full remediation of mold and water issues including testing plumbing, repairing any issues with plumbing, ripping out drywall and flooring and replacing as necessary, etc. 

The precise remedies available will depend on your lease and the contract law governing it.Since you are remote, you will need to find a property manager or someone local to be your boots on the ground through the drama which may ensue. 

behind on their payments and a short-sale is usually the remedy-of-choice.

Agreed, usually the EM is the contractual remedy for Buyer default.