For the inspector...liability would  probably require proof of willful negligence, meaning they knew what they should do or report and willingly chose not to do it. 

It has no windows and no secondary emergency exit and is uninsurable in it's present condition.If there were a fire now and they were killed,the previous owner could be sued and maybe jailed for negligent homicide.Demanding and accepting one penny from them would make you criminally liable as well.You need to get them out asap and not accept any money from them.Don't give them anymore grief and be helpful finding them somewhere else to go.

I will cover any failure-to-file penalties due to my negligence (has never happened), but my clients are responsible for any failure-to-pay penalties.  

Granted the park has to be vetted etc and this is not an excuse for negligence but I think many parks that are, or have the ability to produce relatively higher returns can actually have a lower level of risk , at least that is how I would perceive it in some case......

How was the "fall" your liability if they can not show proof of some negligence on your part?

These causes of action and damages waived include, but are not limited to negligence, conversion, theft, trespass, assault, or any other cause of action under Texas statutory or case law.

Get a good hazard policy from a top tier insurance company and don't be negligent.

In addition, a low value property like this sounds tends to have some additional fines or liens from the municipality for negligence or nuances.  

Yes, a realtor is your agent, but in a principle/agent relationship there is no exclusion to negligence.  

The bedroom ceiling drywall, one wall, and the bedroom carpet all had to be replaced.To be fair, the tenant had no access to the downstairs bedroom, but his negligence to let me know of the water leak in the upstairs kitchen led to extensive water damage.The insurance company said they estimated the damage to be $5,489.