Have Concern | Closing First Mobile Tomorrow

[Jordan A Keller]

1979 NACU 2bd mobile home.

I basically have one concern ~ there is a open pipe on the roof, perhaps once used as plumbing vent (we are unsure where they've been rerouted).

There was a nest inside, I poked and prodded, no softness, no mold or mildew within field of view.

I'm just somewhat worried, it seems this pipe has been this way for a very long time, it crumbles to the touch. I'mwondering how much water has rained down in there. I was able to see passed the insulation and nest withing the pipe hole, there was a plastic film over the wood beneath them. 

Thoughts?