The First Question I Ask About Any Deal Isn't "What's the Return?"
Every investor who calls me about a deal wants to talk about the same thing first: the return. Cap rate, cash-on-cash, IRR, whatever number makes the deal feel real. I get it. That's the fun part.
But it's not the first question I ask anymore. Hasn't been for a while.
The first question I ask is: what has to go wrong for this deal to stop working, and how much room do I actually have before it does?
That question has saved me from more bad deals than any return calculation ever has.
Return tells you a story. Risk tells you the truth.
Here's the thing about a projected return. It describes exactly one version of the future. The version where rates stay roughly where they are, rents keep climbing on schedule, nothing major breaks, and every tenant renews right on time. It's a nice story. It's just not the only story that could happen.
Risk analysis asks a completely different question. Not "what do I hope happens" but "what happens if it doesn't." And once you start asking that question about every deal, you start noticing the same handful of risks showing up again and again.
Financing risk is the one people underestimate the most
I've watched investors get excited about high-leverage financing programs without fully pricing in what happens at renewal. And I understand the appeal. Programs like CMHC's MLI Select can offer up to 95% loan-to-value and amortizations as long as 50 years for projects that commit to affordability, energy efficiency, or accessibility criteria. Those are genuinely attractive terms. They can also mean you're carrying more leverage over a longer period, which makes your deal more sensitive to what happens at your next renewal.
So I model every deal at a materially higher renewal rate than today's rate, not just today's rate. If the deal only works assuming rates stay exactly where they are for the next five or ten years, that's not a deal. That's a bet on monetary policy.
The mistake that quietly kills more deals than bad markets do
If I had to name the single most common mistake I see, it's this: running only one projection. The good one.
Rates stay low. Rents keep climbing. Nothing breaks. That's the scenario that gets built into the spreadsheet, and it's the scenario everyone gets excited about, and it's also the scenario that has the least chance of actually happening exactly as written.
A roof, a boiler, an electrical system, an elevator. All of these have a finite remaining life, and none of them ask your permission before they need replacing. Get a property condition assessment before you waive conditions, not after. Underwrite major capital items as a known future cost you're planning for, not a surprise you're hoping to avoid.
And don't forget concentration risk. A ten-unit building where three tenants make up 40% of your gross rent behaves very differently than a hundred-unit building with the same average rent per door. Know how exposed your income actually is before you assume it's stable.
Regulation is part of risk too
This one catches a lot of investors off guard, especially if they're used to underwriting the same way across different markets. Rent control rules, renoviction restrictions, and short-term rental regulations vary meaningfully by province, and sometimes by municipality within the same province. What you could achieve at turnover in one city might not be legally achievable a few hours down the highway. Confirm the actual rules for the specific jurisdiction before you assume you can hit market rent when a unit turns over.
What I actually do with all of this
For every deal I look at seriously, I write down the single scenario that would hurt the investment the most. Not a vague "what if rates go up" but a specific number. What does it actually cost me if renewal happens at two points higher than today. What does it actually cost if the boiler needs replacing in year three instead of year eight. What happens to my net operating income if my three largest tenants all leave within the same six months.
If I can't answer that question with real numbers, I'm not ready to make an offer. It's that simple.
Return is what you hope happens. Risk is what you plan for. I've found that analyzing the second one first makes the first one a lot more trustworthy.
If you want to see the full risk framework I run against every acquisition, along with the underwriting process and market analysis that come before it, I laid the whole thing out in The Real Estate Deal Analysis Guide. It's free, built for the Canadian market, and it includes a checklist you can use on the next deal that crosses your desk.