Blow off your steam before moving day. No good will come if you go with a chip or intent.
I think you should go as the property owner.
Additionally, make certain you have a sheriff or deputy there to keep the peace.
Also, consider having someone else there be it a family member or a friend, someone who can keep you in check if you forget to be nice.
Having someone record everything on video is always smart. Or set up a tripod. Often people behave better if they know they are being recorded ...
