Next, gather your income documentation: current leases, a rent roll and utility arrangements, because an investor buyer's lender will underwrite the purchase on that income, and gaps in the paperwork slow financing down more than almost anything else.
Confirm permit status on every unit next. A legal secondary suite adds real value that a lender will finance; an unpermitted one does not count toward income in most underwriting, and a $400 to $600 home inspection tends to surface which is which.
Once the comparables, income documents and permit status are in hand, pricing the property becomes a much more precise exercise than guessing off an online estimate. Get your hand-reviewed valuation from Joel Dyck.