If it’s copper (or plastic), I can’t imagine anyone who would require it to be replaced.

I have had cement in pipes, water left on to flood basements, ripped out copper, etc.In higher end homes, the risk is owners that have lawyers or are smart enough to know that they can fight the system and resist leaving with legal tactics for several weeks.Occasionally you get both issues but not normally.Of course, if the occupants are tenants with a lease it brings up other issues.For me, here is the key tip for what you are really asking....which is... how the hell do I make sure I don't lose money when I can't see the inside? 

I just started digging into all the nuances of what it might take for building a new project and I do understand it can cost a pretty penny.

So I will be adding new kitchen cabinets and countertops, as well as new roof, fresh coat of paint, little bit of landscaping for the back yard.

Likely the person selling the house will not get a penny. 

All metals buildings come with a primer coat on framing members and will fade over time but I would not worry about priming/painting any of the framing members.My primary focus is purchasing/developing metal buildings for the light industrial market, as the options are almost unlimited as far as what you can do with a metal building.

I usually just order from JC Penny's, but I have a couple that are 19" wide, which they don't seem to carry.

Cash, if you had any, was king because you could scoop up bargains for pennies on the dollar.(2) inflation: During The Stagflation Era (1970s), banks were afraid to lend because prices were increasing so fast.

Our HOA is voting on whether to smooth coat and paint our 70's spanish lace stucco 22-unit building on the beach in Santa Monica, or to simply paint over the heavy spanish lace for a few grand less per unit.

Use two coats (or three if it’s a very high traffic area) with Skid-Tex mixed in each batch.