How to Finance a Multi-Unit Investment Property

Financing Multi-Family Properties Up to 15 Units

Grow your real estate portfolio with the right loan strategy

If you’re looking to invest in multi-family real estate—whether it’s a duplex, fourplex, or a larger 10- to 15-unit building—your mortgage options go beyond the standard single-family home loan. Multi-family investments can generate significant income and build long-term wealth, but they also require the right financing approach.

Here’s what you need to know about financing multi-family properties with up to 15 units, and how to get approved with confidence.

Understanding Residential vs. Commercial Loans

The number of units determines what type of loan you’ll need:

• 2–4 units: Eligible for residential loans (conventional, FHA, VA)

• 5+ units: Considered commercial property and requires commercial or portfolio financing

That means a 4-unit building can be financed similarly to a home, but a 6-unit or 12-unit property involves an entirely different loan structure.

Financing 2–4 Unit Properties (Residential)

For properties with four units or fewer, you may qualify for:

• Conventional investment loans

• Owner-occupied loans (if you live in one unit)

• FHA multi-family loans (up to 4 units with 3.5% down)

• VA loans (if you’re a veteran and plan to live in one unit)

These loans offer:

• Lower interest rates

• Longer terms (30 years)

• Lower down payment options if owner-occupied

Pro Tip: Buying a 2–4 unit building and living in one unit is a great way to house-hack your way into investment real estate.

Financing 5–15 Unit Properties (Commercial)

Properties with 5 or more units require a commercial or portfolio loan, which works differently than residential loans:

Key Differences:

• Shorter loan terms: Often 5, 7, or 10 years with 20–25-year amortization

• Higher down payments: Typically 25%–30%

• Interest rates: Usually higher than residential loans

• Qualification based on property income, not personal income

Lenders will focus on the property’s Debt Service Coverage Ratio (DSCR), which measures whether the income generated by the building is enough to cover the mortgage payment.

Minimum DSCR is typically 1.20 or higher.

Documentation and Requirements

To finance a multi-family building, be ready to provide:

• Rent roll and lease agreements

• Two years of property operating history (if applicable)

• Business entity information (if buying through LLC)

• Proof of reserves (often 6–12 months of mortgage payments)

• Appraisal and market rent analysis

For larger properties, commercial lenders may also require environmental reports or inspection of building systems (HVAC, plumbing, etc.).

Renovation & Rehab Projects

If you’re purchasing a multi-family property that needs work, there are rehab loan options such as:

• Fannie Mae Homestyle Renovation

• Commercial rehab loans

• Bridge loans (short-term financing until permanent loan is secured)

These can help you finance both the purchase and the improvements in one loan.

Final Thought

Multi-family properties up to 15 units offer an exciting opportunity for long-term income and portfolio growth—but only if you secure the right financing. From residential 4-plexes to commercial mid-sized buildings, the key is knowing which loan structure fits your investment.

Tory Pietzsch, The Mortgage Brother, helps investors in Texas finance multi-family properties confidently—whether you’re house hacking your first duplex or expanding into larger rental holdings.

Reach out today to explore your options and start building real estate wealth the smart way.