I just need to include the costs (time and money) for the remediation in my modeling.

The work involved is remediation of mold in the bedroom,  new insulation and sheet rock the bed room, the water pipe has frozen, since the bank winterized the house later.

I'm not apposed to spending the money to have mold remediation, but I don't believe that it needs to be done.

Every year you must have the property inspected and remediate any problems.  

The main problem I see is that if you ever want someone to work on it you'll have to tell them....some contractors then won't do anything unless you have it remediated. 

@Victoria S. there are companies that specialize in mold remediation and you can likely find one in the KC area just by googling.

Let's just say the cost to remediate and remove the shingles would have been enough to kill my cash flow from the property indefinitely. 

The price will be driven by the number of fixtures and lengths of runs of piping, but I just can't imagine it costing it anywhere near $30 to $40k.For a similar project for me in Kansas City, re-plumbing new water supply lines would be <$10k.I think big risk is how much water damage, mold remediation, drywall patching, insulation, framing & other finishes needs to be replaced?

However, the fact that she's not proactive enough to kick out dead-beat tenants for 18 months tells me she probably won't take the steps to remedy her situation in any other way.

In my opinion, this job might be a little much for a standard cleaning service, but doesnt quite meet the need for a hazard remediation service.