Thanks everyone for your responses. A little more background. My wife's boss, who we have a good relationship with, is the person selling it. So fortunately, we are comfortable with the condition of
the trailer and it's systems.
Just being completely knew to this, all kinds of things are running through my mind. My wife nor I grew up camping, but we see it as a great hobby for our family.
Basically, if it was March, we'd have already purchased it and be using it. I'm just a little apprehensive of de-winterize it, then re-winterizing it in a month or so and then letting it sit. I know you guys can't make the decision for me, but I really do appreciate the feedback already.