@Rich Hupper I’m not sure about the specifics of enforcement, but once contamination is found the property owner is responsible for remediation.

Lots of time spent showing properties for rent, processing applications- running credit checks and verifying employment, We are not on call 24/7, but if ther is an emergency, the tenants have a number to call which is our local plumbing and water remediation Company. 

This is also after a lot of back and forth with the buyer first saying they would accept a letter from the HOA stating they are responsible for fixing the sheathing and then deciding the email from them wasn't good enough.Here is the contract language in this regard if anyone is curious:If the infestation report reveals the presence or indication of or damages by termite infestation or other wood destroying organisms, Seller shall remedy such deficiencies and shall furnish the Buyer with an infestation report by a qualified/licensed/bonded pest control operator (dated no earlier than 30 calendar days prior to Closing) that the Property is free from infestation or any damage herein mentioned; or documentation that the infestation has been treated and damage has been repaired as appropriate in a workmanlike manner on or before closing and reported by an appropriate licensee.

Upon discovering the issue I reached out to their investor line and they remedied the situation within a few weeks.

I'd also expect some subfloors to need replacing, potential mold remediation,  and  a lot of dump fees!   

The cabinets and drywall need to be removed so mold remediation can happen.

My wife and I are relocating, have found a lovely home for ourselves, just received the home inspection...Aside from some minor to moderate issues...Polybutylene piping is in the home...House is approx 2,200 sq. feet...Assuming we can come to a meeting of the mind with other issues, what do you feel cost to remediate this plumbing?

It also includes permits, termite and mold remediation.  

They said they remedied and I did and inspection. 

simply do not take anyone's word for this landlock situation.. open escrow get a title commitment and see it it is actually landlocked.. if it is your remedy in the real world. is1. getting a neighbor to grant you the proper easement you will need.2. confirm from the city or county that you can access the property from this new easement..despite common statements folks will make that no property can be landlocked.. and there are remedies this simply is not true.. properties can be landlocked... owners do it to themselves.. not common but it does happen.As for the old house.. sometimes if there is no lead or asbestos fire department will burn them down as an exercise.. ( sometimes)biggest issue in many markets now is the lead paint and Asbestos remediation during the demo.. some areas they don't car.