Where returns leak.

Most of the money lost in small buildings is not lost dramatically. It goes out through a handful of predictable openings — a roof that was always going to need replacing, a reserve that was never funded, a unit that sat empty longer than the pro forma allowed, expenses that drifted while rents stood still, and hours spent in process that nobody budgeted. Each leak is ordinary. Together they are the difference between the return a buyer modeled and the return the building actually paid.

Deferred maintenance is a purchased liability

A building with a worn roof, original windows, and a boiler past its service life often sells at a discount — and buyers are inclined to read that discount as a win. It is more honest to read it as a transfer. The discount you negotiated is the repair bill you assumed; the seller did not remove the cost, they priced it and handed it to you. A roof at end-of-life is not a surprise, it is a scheduled cost that arrived. The useful discipline at purchase is to price the deferred work as if it were already invoiced, because functionally it is — the only open question is which year it lands in, and whether it lands on your terms or the building's.

The reserve line most budgets skip

Separate from the backlog you inherit is the wear you generate. A building consumes itself slowly whether or not the owner saves for it — roofs, parking surfaces, mechanical systems, and unit interiors all move toward replacement at their own pace, indifferent to the operating statement. A capital reserve, carried as so many dollars per unit per year, is simply that consumption written down as it happens instead of discovered later. It is the line most small operators skip, and skipping it does not make a building cheaper to own; it makes the eventual bill arrive unbudgeted, usually at the least convenient moment, and often financed at whatever terms are available in a hurry. A reserve makes the current year's income look smaller. It also makes it true.

Vacancy compounds

Vacancy reads as one small percentage, but it is three costs stacked. There is the rent the empty unit does not collect. There is the cost of the turn itself — paint, flooring, repairs, advertising, the hours spent showing. And there is the gap: the days between one tenancy ending and the next beginning, when the unit is spending money on heat and insurance and earning nothing. A single point of vacancy on the hypothetical building below is roughly two thousand dollars of gross rent a year, before the turn costs are counted.

Expenses creep while controlled rents wait

The expense side of the statement moves on its own schedule. Insurance premiums are repriced at renewal, property taxes are reassessed, utility rates adjust — none of these ask the owner's permission, and none of them wait. On the income side, a rent-controlled tenancy moves within regulated limits while the tenant stays, and resets to market only when the unit turns over. The mechanics are asymmetric: costs drift continuously, controlled rents move on turnover. In a building where tenants stay a long time — which is otherwise a good sign — the margin between the two lines narrows a little each year. This is not a complaint about the rules; it is arithmetic the rules produce, and an underwriter who ignores it is modeling a building that does not exist.

The tribunal is part of the operating reality

Every tenancy in Ontario sits under the jurisdiction of the Landlord and Tenant Board, and a twelve-unit building holds twelve tenancies. Scale means more tenancies, and more tenancies mean more potential tribunal contact over an ownership — arrears matters, maintenance disputes, the ordinary friction of housing people. Good management changes the severity of those contacts and the quality of their handling; it does not change the count the way owners hope. Files still get opened, notices still have prescribed forms, hearings still take the time they take. The budget line here is time and process: clean records, correct paperwork, and the acceptance that dispute resolution is a scheduled part of operating rental housing, not an interruption of it.

The sliders below put numbers on the first two leaks — the reserve and the vacancy — against the same hypothetical twelve-plex used across this library. Add your own financing and the erosion shows up where a lender would see it: in the debt service coverage.