A title search reveals things a showing never will, including a utility easement across the backyard, a right of way benefiting a neighbouring lot, or a caveat filed by a previous party with an unresolved claim. Any of those can limit what you can build or where.
In Saskatchewan, your lawyer handles the formal title review and closes the transaction through ISC directly, with no third-party holding account involved. Your agent's role is to flag anything unusual early enough that your lawyer has the usual 3 to 5 business days to investigate before your condition dates expire.
Skipping the title check to save time is the fastest way to discover a problem after you already own it. Get your hand-reviewed valuation from Joel Dyck.