Vacant tends to show better in photos and showings, since an agent controls staging and access completely, but a vacancy also means no rent coming in while the property markets, which is a real carrying cost on top of the mortgage and utilities.
Tenanted keeps income flowing but narrows the buyer pool toward investors and adds coordination for showings and inspection access, since a tenant is entitled to written notice before anyone enters, and Pleasant Hill's older conversions often have long-tenured tenants who are used to the arrangement.
Which path suits your building depends on its condition, its documented income and who is actually likely to buy it. Get your hand-reviewed valuation from Joel Dyck.