The two-to-four unit investment property — duplex, triplex, quadplex — represents one of the most effective structures in real estate investing: multiple income streams from a single acquisition, combined in a single loan. For portfolio investors in South Florida, these properties are a core building block. The challenge is financing them. Conventional investment property loans require full personal income documentation and add each property to the borrower's debt-to-income ratio. As the portfolio grows, the DTI ceiling is reached and new acquisitions stall. The DSCR program breaks this ceiling.
Why Multi-Unit Properties Suit DSCR Loans
A single-family investment property generates one rental income stream. A duplex generates two. A quadplex generates four. Because the DSCR calculation uses the property's combined gross rental income from all units, a multi-unit property has a structural advantage over a single-family property in meeting the coverage threshold.
A $600,000 quadplex in South Florida with four units each renting at $1,800 per month generates $7,200 in gross monthly income. Against a mortgage payment of $4,800, the DSCR is 1.5 — well above the 0.75 minimum and sufficient for the most favorable program terms. The investor's personal income plays no role in this calculation.
Eligible Property Types
DSCR programs for multi-unit properties cover duplexes (2 units), triplexes (3 units), and quadplexes (4 units). Both units' rental income is included in the DSCR calculation for duplexes; combined rental income from all units is used for triplexes and quads. Properties with five or more units cross into commercial lending.
Properties must be zoned for residential use. Mixed-use properties with ground-floor commercial space may require commercial financing depending on the income split.
If you are acquiring a duplex, triplex, or quadplex in South Florida and want the qualification to hinge on the property's combined rental income, Rafael runs the multi-unit DSCR analysis before any application is submitted.
Request Strategy CallIncome Documentation for Multi-Unit DSCR
For occupied properties, the lender uses the executed lease agreements for each occupied unit. The combined contractual rent from all leases is the income figure in the DSCR calculation. For partially occupied or vacant properties, a market rent appraisal determines what each unit would rent for at current market rates.
For properties being acquired with one or more vacant units intended for renovation before leasing, the market rent appraisal establishes the post-renovation rental basis. Rafael ensures the lender's program accommodates this structure and that the appraisal methodology reflects the property's stabilized rental income.
Portfolio Building: How Multi-Unit DSCR Fits a Larger Strategy
South Florida investors who are building portfolios use multi-unit DSCR loans as an efficient capital deployment vehicle. Rather than holding eight single-family homes — eight properties to manage, eight separate tax lots, eight sets of maintenance responsibilities — a four-property portfolio of quadplexes produces the same 16 income units with four acquisitions, four loans, and four management relationships.
Because each DSCR acquisition is evaluated on the property's income rather than the borrower's personal DTI, the portfolio can grow without the conventional ceiling that limits income-documented borrowers. Rafael has structured multi-property DSCR portfolios for South Florida investors across all asset classes, including foreign national investors who hold their US properties entirely within LLC structures.
South Florida Markets for Multi-Unit Investment
Little Haiti and Little Havana in Miami offer dense urban neighborhoods with established rental markets and active multi-unit inventory. Hialeah and Miami Lakes are high-density suburban markets with significant multi-unit stock and consistent rental demand. Fort Lauderdale and Dania Beach have active duplex and quadplex markets with good income-to-price dynamics relative to Miami Beach pricing. West Palm Beach and Lake Worth offer growing rental markets with multi-unit inventory at price points that produce favorable DSCR ratios.
Rafael evaluates each market on the current income-to-price dynamics and identifies the properties and price points where the DSCR calculation works most effectively.
Frequently Asked Questions
Rafael Amaro · NMLS 1976196 · Wealth Growth Partners · Boca Raton, FL · Sponsored by Premier Lending, Inc. NMLS #238143 · This briefing is for informational purposes only and does not constitute legal, tax, or financial advice. Program availability, qualification requirements, and down payment minimums are subject to change and vary by lender. Consult qualified legal and tax counsel regarding entity structuring and US estate tax obligations.