A first mortgage investment is the most conservative position available in this asset class, and "most conservative available" is a narrower claim than it sounds. It means you are first in a queue. It does not mean the queue always has enough money in it.
This article covers what first priority actually buys, why it is paid for with a lower coupon, what protects it in practice, and the specific circumstances in which a first mortgage still loses principal — because those circumstances are foreseeable and most of them are visible in the file before funding.
What "first" means
A first mortgage is the charge with first priority against a property. On a sale, whether voluntary or under enforcement, the proceeds pay the costs of sale and any claims given statutory priority, then the first charge in full — principal, accrued interest and any costs it has advanced — and only then anything behind it.
Priority among mortgages generally follows the order of registration rather than the order in which money was advanced. A lender who funds on Monday and registers on Thursday can sit behind one who funds on Wednesday and registers the same day. This is why a mortgage investment is funded through a lawyer and why the registration confirmation matters as much as the transfer of funds.
First priority is also not permanent. A registered postponement can move a first behind a new charge, usually to let a borrower refinance. That document should never be signed without understanding what the position becomes afterwards.
Why a first pays less
The coupon on a mortgage is the price of the risk being taken, and a first charge takes less of it. The owner's equity absorbs a decline in value first; a first mortgage is touched only once that equity is exhausted. A second charge sits above the first and is consumed earlier, so it is paid more.
An investor who looks at two mortgages on the same property and prefers the one with the higher coupon without reference to position has not found a better investment. They have found a worse position being correctly priced.
The three things that actually protect a first
- The equity cushion. The gap between the loan and the property's value. A first at a modest loan-to-value can absorb a substantial decline in sale price before principal is at risk. This is the protection investors think about.
- Marketability. Whether the property can actually be sold, and how quickly. A standard suburban townhouse and a unique rural property can carry an identical loan-to-value and present entirely different risks, because one has many buyers and the other may have none for a year. This is the protection investors usually ignore.
- A credible exit. How the loan was always meant to be repaid — a sale, a refinance, a completed project. A loan with no plausible exit does not fail at maturity; it fails earlier, and renewal simply postpones the arithmetic.
A first mortgage with a low loan-to-value against an unsaleable property is not a safe investment. The order of these three is not the order of their importance.
A worked example: the recovery waterfall
The figures below are arithmetic placeholders, chosen to show how the waterfall behaves rather than to represent any actual loan.
Take a property appraised at $1,000,000 with a single first charge of $650,000 — 65% loan-to-value. By the time an enforcement concludes, assume the claim has grown to $690,000 through accrued interest, advanced property taxes and insurance. Assume costs of sale, including legal fees and commission, of 8% of the sale price.
| Sale price | Decline from appraisal | Net after 8% costs | Outcome on a $650,000 first ($690,000 claim) |
|---|---|---|---|
| $1,000,000 | 0% | $920,000 | Paid in full; $230,000 of owner equity remains |
| $850,000 | 15% | $782,000 | Paid in full |
| $750,000 | 25% | $690,000 | Paid in full — exactly, with nothing to spare |
| $650,000 | 35% | $598,000 | $92,000 short — roughly 14% of principal lost |
| $550,000 | 45% | $506,000 | $184,000 short — roughly 28% of principal lost |
Three observations fall out of this. The first charge survives a 25% decline and begins losing principal somewhere past it — a usefully large buffer, and a finite one. The breakeven is not at 65% of appraisal but closer to 75%, because interest accrues and costs are advanced during the enforcement. And the losses, once they start, are not small: a further 10% decline in sale price costs roughly 14% of principal, because the loss falls entirely on the lender once equity is gone.
Where a first mortgage still loses money
A first charge is not the top of the queue in every sense. Several claims can rank ahead of it, and several circumstances can erode it even where no claim does.
| Risk | How it reaches a first charge | What reduces it |
|---|---|---|
| Statutory priority claims | Property tax arrears and, for condominiums, common expense arrears can rank ahead of a registered charge in many provinces. | A current tax certificate and, for a condominium, a status certificate — dated at funding, not at application. |
| Construction liens | A lien for work already performed can be registered after your charge while relating back to an earlier date. | Ask what work has been done on the property and who has not been paid. Treat an active site as a live issue. |
| Valuation error | The equity cushion is only as real as the appraisal. An overstated value shrinks a buffer that looked generous. | An appraisal that states its basis and comments on days on market, plus your own look at comparable sales. |
| Time | Accrued interest, taxes, insurance and maintenance grow the claim and the costs while the enforcement runs. | Understanding the enforcement route and realistic timeline for that province before funding, not after default. |
| Illiquidity of the asset | A property with few buyers may not sell at any price close to the appraisal within a reasonable period. | Marketability assessed on its own terms rather than inferred from the loan-to-value. |
| Environmental or title defects | A contaminated site or a defect in title can make a property difficult to sell and expensive to fix. | Title insurance naming the lender, and environmental review where the property type warrants it. |
Diligence specific to a first
The questions below are the ones a first mortgage position makes most important. They are questions of fact, and all of them can be answered before funding.
- What does the title search dated at funding show — not at application — and what does the execution search show?
- Is the tax certificate clear, and for a condominium, what does the status certificate disclose about arrears and special assessments?
- What is the appraisal's basis, and what does the appraiser say about how long this property would take to sell?
- Has any work been done on the property recently, and has everyone who did it been paid?
- If this loan defaults, what is the enforcement route in this province, who funds the costs while it runs, and what is the realistic timeline?
A first mortgage is a genuinely different risk from a second, and the difference is large. It is not the difference between risk and no risk.
First priority buys you a buffer, not an outcome. The size of the buffer comes from the equity below you; whether you ever get to use it comes from whether the property can be sold at all.
Questions investors ask
What is a first mortgage investment?
An investment in a loan secured by the charge with first priority against a property. On a sale, the costs of sale and any statutory priority claims are paid first, then the first charge in full, and only then anything registered behind it.
Why does a first mortgage pay a lower rate than a second?
Because it takes less risk. The owner's equity absorbs a decline in value before a first charge is touched, whereas a second charge sits above the first and is consumed earlier. The higher coupon on a second is the price of the worse position, not a better investment.
Can a first mortgage investment lose money?
Yes. Statutory priority claims such as property tax or condominium arrears can rank ahead of it, construction liens can relate back to earlier work, an appraisal can be overstated, enforcement costs and accrued interest grow the claim, and a property with few buyers may not sell near its appraised value.
What loan-to-value makes a first mortgage safe?
No loan-to-value makes it safe, because LTV is a measurement rather than a safeguard. A low LTV against a property that cannot be sold is worse than a higher LTV against a property with many buyers. Marketability and the credibility of the exit matter alongside the ratio.
Does first priority ever change?
It can. A registered postponement moves a charge behind a newer one, usually to permit a refinance. The document should not be signed without understanding what the position becomes afterwards.