What extra due diligence should an investor do before buying a triplex or fourplex in Ontario?

Beyond the standard resale steps of a title search, survey review, and home inspection, an investor buying a triplex or fourplex should review the existing leases and rent roll in detail, ask about any pending or recent Landlord and Tenant Board matters connected to the property, and confirm zoning and permit history matches the actual number of units being rented out. Fire code and life-safety compliance, given the higher occupant count, is also worth specific attention rather than assuming a home inspection alone covers it.

Insurance obtainability and the property's multi-residential property tax classification should also be confirmed before conditions are waived, since both directly affect the ongoing cost of holding the property. Because these pieces touch different professionals, a lawyer to review the legal and tenancy picture and an accountant to review the numbers together give a fuller picture than either working alone, and getting both involved before you are locked into the deal is worth the extra coordination given how much a multi-unit purchase can differ from an ordinary single-family closing.