Saskatchewan's land titles system carries an Assurance Fund for exactly this situation, and a lawyer regulated by the Law Society of Saskatchewan is who initiates the correction process with Information Services Corporation, which realistically stretches a normal 2 to 4 week closing into several months.
Report the fraud and get a lawyer involved immediately rather than trying to list around it, since a title search by any buyer's lawyer will surface the problem anyway, and disclosing it upfront is far better than having a deal collapse partway through conditions.
This is one of the few situations where the honest answer is that fast is not realistic until the title itself is clean. Get your hand-reviewed valuation from Joel Dyck.