HVAC duct work insulation is also deteriorated.No vapor barriers installed eitherSome fungi/mold growth notedPlumbingMultiple small leaks under sinks and from bathtub and toilets.House has Polybutylene plastic plumbing which is dangerousMain shut off valve is damagedElecticalSome small exposed wiring and bad splicing.Whole house has no GFCI's or grounding outletsInteriorMoisture spots on ceilingExteriorLose Vinyl SidingDoor Jams and Window trim have moisture damageDriveway need replacementRoofingMinor leaks noted in atticRecommended to replace roof covering, but not whole roofSome fungi growth noted in roofSo some of the question I am trying to tackle with this work is:How much should I budget for the main issues listed? 

I would not reccomend them at all in you are in an area of with alot of moisture or rain.

I need some gentle guidence as a start in what direction to go to find out foreclosure costs.My JV partner and I own a note and the borrower has defaulted and not paid in several months.

Also they remove the need for a chimney and individual water heaters since the exhaust is essentially moisture. our HVAC does most of their work in the city if you want contact info- He's installed 3 for us just this last year lol In basic terms It would involve:-Permits / approval-Additional Meters X 3 (all thru UGI, they coordinate with contractor)-3 additional units to accommodate each apartment.

However, beyond giving this group an opportunity to do the right thing (I responded with appreciation for the transparency, the only 2 questions we're allowed to legally ask, and a gentle reminder that we are a dog-friendly property and it's a minimal cost of $20 per night), is there a better way to handle this?

After removing the mold risk and opening the walls we found moisture coming through the foundation showing improper foundation work done over time, including wood foundation being used in the rear.

After looking at it, it’s not really leaking or dripping, more so just a little moisture around the seal.

Heat and moisture gets trapped under the house and the heat wants to rise but the LVP creates a vaporlock, thus inhibiting the mold growth. 

My GC primed and painted over them a few times thinking they were just old, stubborn stains that needed extra product, but they kept coming back after each rainfall.I hired a water intrusion detection company to help me pinpoint the problem - they said the new roof seemed solid and that based on infrared and temperature readings, the moisture is coming in from the partition walls.

There were temporary support beams in the basement along with enough moisture to actually grow mushrooms in the basement crevices!