Was this house a repo?

My question is that how long after someone moved out did the plumber winterize the house? How long did it sit during the winter before the plumber got to it? Sometimes these houses (repo's) sit for several months before the lender gets possession and gets a plumber inside.

Also, is it possible to adequately drain the pipes from the well to the house? I'm not aware of any method to drain these pipes, short of pulling the pump. Could they have frozen? They are supposed to be below frost line but who knows.

Lots of questions that I think will take a pro to figure out.