Multiple representation is legal in Saskatchewan when it's disclosed and you consent to it, but it changes what that agent can tell you. Information that would normally help your negotiating position, like how flexible the seller actually is, can no longer be shared once representation is shared.
A buyer's agent working only for you owes you full advocacy on price and conditions, which is a different relationship than one shared between both sides of the same transaction, even when both are handled honestly.
Ask directly whether you'd be a client or a customer before that agent shows you the house, and get it in writing either way, budgeting legal fees of $800 to $1,500 for the lawyer who will close it regardless of how you're represented. Get your hand-reviewed valuation from Joel Dyck.