The document that makes this work is a power of attorney for the sale, drafted and witnessed to the standard the Law Society of Saskatchewan requires, ideally signed before you leave rather than couriered back and forth over the following 2 to 3 weeks.
On the ground, an agent manages access for showings through a lockbox or a local contact, handles negotiations by phone and email, and sends offer documents to you electronically for review and signature, so the physical distance stops mattering after the first week.
The one step that still needs real attention from a distance is reviewing offer terms carefully, since a seller not walking through the home daily can miss a condition clause that matters. Get your hand-reviewed valuation from Joel Dyck.