Start by confirming exactly how title is held. Owners can hold a property as joint tenants or as tenants in common, and that distinction changes how a deceased owner's share passes and who legally needs to sign off, so a lawyer should confirm the registration on file with Information Services Corporation before you list.
If one family member disagrees with selling, the options narrow to negotiation, a buyout of that person's share, or an application to the Court of King's Bench of Saskatchewan for a partition and sale order, and legal fees for that kind of application typically run well beyond the $800 to $1,500 range a straightforward sale involves.
A lawyer, not a REALTOR®, resolves the title question, but once every name is prepared to sign, pricing and marketing the house is Joel's job. Get your hand-reviewed valuation from Joel Dyck.