Plumbing pressure test with water off (I would also throw in camera test that adds $200 on it's own- I got burnt with a sewage line replacement for $7-8k after purchase). 5.

There was heavy black mold throughout the house and we ended up gutting down to the studs, replacing all drywall, all electric, new roof, most of plumbing, new kitchen, new bath and all new floor coverings. 

For example, roofing, painting, cabinets, flooring, electrical, plumbing, HVAC, etc. 

Same with windows.Electrical, HVAC and plumbing are not as easy to do this with, but you can do band-aids a bit.

Copper plumbing is about 50 years.

@Nubia SilvaFirst thing you need to look at is your condoDocuments and understand what is common area vs unitFor example a plumbing line that is a main that runs through the walls may be considered common area but if water is leaking around the drain in your unit then it could be your issue.First identify the leak which the condo association should be involved in when it’s unit to unit leak to get it reviewed to check where leak is from.

Are they right out onto the ground or are the plumbed to sewer/septic?

Despite his efforts, our partner has not fulfilled his responsibilities (besides other things, he has to handle county and state dealings, as well as completing the plumbing work. 

Also, I have First American home insurance and they say they will cover if there was anything in the house (electrical, plumbing, appliances etc) that breaks.

During the Inspection, it revealed some issues with Plumbing, mold, Mildew, Termite.