Using Debt to Grow Your Rental Portfolio: Financing Strategies

AL

Adam Larson

February 16, 20266 min read
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Part of Landlord Manual for 2026 · Scaling
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Leverage—using borrowed money to buy or hold properties—can grow your portfolio faster than paying cash, but it comes with risk. Understanding when it helps and when it doesn't keeps you on solid ground. For the full picture on scaling, see How to Get More Rental Properties; for when to hand off operations, see When to Hire a Property Manager.

When Leverage Helps

Borrowing lets you acquire more units with less cash per deal. If the property cash-flows after debt service and the rent covers the loan, leverage can improve returns on your invested capital. It works best when you have stable income, reserves for vacancy and repairs, and a clear exit or hold plan.

DSCR and Lender Requirements

Many commercial or portfolio lenders use debt service coverage ratio (DSCR): the property's net operating income divided by annual debt service. A ratio above 1.0 means rent more than covers the payment. Lenders often require a minimum DSCR (e.g. 1.2–1.35). Understanding DSCR helps you size loans and choose properties that qualify.

Risks: Vacancy and Rates

Leverage amplifies both gains and losses. Vacancy or a big repair can strain cash flow when you have a mortgage. Rising interest rates increase refinancing and new-loan costs. Keep reserves and stress-test your numbers (e.g. what if rent drops 10% or the unit is empty for two months?). Consult a lender or financial advisor for your situation.

Conventional, Portfolio, and Refinancing

Conventional (Fannie/Freddie-style) and portfolio loans are common for 1–10+ units. Refinancing can pull out equity to buy the next property or lower payments. Each has different terms and limits. See How to Get More Rental Properties for an overview; work with a mortgage professional to choose the right structure.

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    Using Debt to Grow Your Rental Portfolio: Financing Strategies | Rezides Blog