If your not staining it don't strip it. Let the woodie your refering it too take care of that. The end quality depends on how it was preped and he probly wouldn't touch it if you had already started it.
Bottom line is if your HO wants it stained and or sealed pass the whole thing off to your wood guy. If your just trying to upsale something just wash it down with a light precarb or house wash minus the bleach.