Build the rent side from a real rent roll and twelve months of actual collections, not asking-rent estimates, since a lender will underwrite verified income and discount anything unproven. Only rent from suites the City of Saskatoon has permitted counts toward that number at all.
On the expense side, property tax, insurance, a maintenance reserve and any condo or utility costs specific to the building all reduce gross rent before you reach net operating income, and a capitalization rate applied to that figure is what larger multi-family properties are ultimately valued on.
A $400 to $600 inspection and $800 to $1,500 in legal fees through a Saskatchewan lawyer both belong in the analysis as real one-time costs, not afterthoughts once financing is already underway. Get your hand-reviewed valuation from Joel Dyck.