06/18/2026
Your offer is a sentence. The math is the rest of the book.
A first investor property works or doesn't on a one-page spreadsheet. Four numbers decide it — down payment, monthly mortgage payment, expected rent, monthly fixed costs (taxes, insurance, condo fees if any, vacancy reserve, capex).
For a $550K Calgary legal suite property with 20% down, the back-of-napkin shape is roughly $110K down, mortgage payment near $2,700/mo, expected rent in the $3,800–4,400 range across both doors, fixed costs around $900–1,100/mo. The deal works or it doesn't at this level. Everything else is detail.
Stress-test BEFORE you offer. What happens if rates rise 1% at renewal? If vacancy hits a month per year? If maintenance eats an extra $200/mo? The deal has to survive a hard pencil, not just a soft one.
Here's the line a lot of first-timers miss — cashflow without reserves isn't cashflow. It's premature spending. Hold back one month's rent per year for vacancy. Put 5–10% of rent into a capex reserve. The roof, the furnace, the water tank — they're coming. Reserve for them now or scramble for them later.
What good math looks like — positive cashflow AFTER reserves (not before). Principal paydown that your tenant funds. Equity that builds even if appreciation does nothing. Tax treatment of legitimate expenses working in your favour. Four engines pulling on this property — cashflow, paydown, tax treatment, appreciation — and you don't need every engine to be strong. You just need the math to be honest.
Part 3 (Fri) walks the offer itself — how to make it without overpaying.
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Ariell Arevalo from the
Sell With Ariell Team — CIR Realty