1) In person: Dedicate several says to fly out to the location you want to move to and view as many houses as you can. This is ideal because it eliminates the chance that you put an offer on a house you don't really like.
2) Live stream: Leverage FaceTime, Skype, or something similar to be there virtually. This is beneficial as you can ask questions in real time as your agent walks through the house.
3) Sight-unseen: If the first two are not options, you may need to make a decision based on what you see from the listing photos/info. If possible, I'd recommend having your agent preview the property for you to make sure there are no surprises.