. #2 would be removing the old vinyl exterior to expose the original wood siding tons of sanding & patching.

Depending on the soil, a broken irrigation pipe underground may not show up as a soggy spot; here in the desert CA a patch of unusually happy enthusiastic plants = leak. 

And new PRVAlso are they including the drywall patches?

at least you have tenants that shower ... when one of ours cracked the tub we used a fibre glass patch & resin on it until we could replace it completely...worked like a charm.

For example, where I live, you can no longer just patch a City road after tapping a sewer line.

Not true the ceiling needed to be patched and painted, carpet replaced due to all the stains and mold, the bathroom vanity replaced from moisture damage and the bill paid for the drying company.

New paint, patch walls,deep clean. etc.

Youtube how to patch drywall, replace sinks, painting techniques, anything that will help make a house better once you're in it.

The holes in the walls from hanging things up are already there, so whether you patch them in Sept or in 2 years, it doesn't really matter.

We hauled off a significant amount of junk/garbage, replaced the floors, patched/painted the walls, replaced a portion of the roof, and installed new fixtures in the kitchen and bathroom.