Older east-side stock like this frequently carries a second kitchen, an added bedroom or a basement suite built up over several owners, and none of that shows up in the city's permit file or in an online estimate, which is exactly the gap a buyer's lender asks about at financing.
A lender crediting rental income needs the suite confirmed as legal, and up to four units most appraisers still lean on comparable sales adjusted for rent rather than a pure income calculation, so verified permits change the comparable set a specific property can actually be measured against.
Budget $400 to $600 for an inspection and $800 to $1,500 in legal fees through a Saskatchewan lawyer on a straightforward Adelaide/Churchill multi-family purchase. Get your hand-reviewed valuation from Joel Dyck.