John, I just purchased a home and am dealing with the same thing... OSB with no wrap and I did have indicators of windows leaking as well as insects coming through unfinished portions of the home. Is there any recourse a home owner can take on a purchased home. This house was built in 2001 and I was surprised to find as much as I did. Inner corners were not tapped properly so they are cracking (albeit I would expect some from settling...) But its just craftsmanship of today is so shoddy I don't think I would ever purchase a newer home again. Jeff
