Many real estate investors start with residential properties — single-family homes, condos, small multifamily. When they move into commercial real estate, they're often surprised by how different the financing landscape is. The fundamentals are similar, but the rules, metrics, and expectations are meaningfully different.
How Underwriting Differs
Residential mortgage underwriting is largely standardized. Fannie Mae and Freddie Mac set guidelines that most lenders follow — debt-to-income ratios, credit score minimums, appraisal standards. The process is heavily regulated and relatively predictable.
Commercial real estate underwriting is property-first. Lenders evaluate the property's income, occupancy, lease structure, market conditions, and physical condition. The borrower matters, but the asset drives the deal. Two borrowers with identical financial profiles can get very different outcomes based on the properties they're buying.
Key Metrics: Residential vs Commercial
| Factor | Residential | Commercial |
|---|---|---|
| Primary metric | DTI (debt-to-income) | DSCR (property cash flow) |
| Loan terms | 15 or 30 years fixed | 5, 7, 10-year fixed; 25-30 yr amortization |
| LTV | Up to 97% (conforming) | 65–80% typical |
| Appraisal approach | Comparable sales | Income approach primary |
| Down payment | 3–20% | 20–35% typical |
| Rate type | 30-year fixed common | Balloon with amortization common |
| Personal income | Primary qualifier | Secondary to property income |
Loan Terms and Structure
Commercial loans are almost never 30-year fixed-rate products. The typical structure is a 5, 7, or 10-year fixed rate with a 25 to 30-year amortization schedule — meaning you have a balloon payment due at the end of the fixed term. You're expected to refinance at maturity, not hold the same loan for 30 years.
This creates refinancing risk — your rate at maturity depends on market conditions you can't control today. Managing maturity risk is a significant part of commercial real estate ownership.
The Role of the Entity
Commercial real estate is almost always purchased in an LLC or other business entity rather than personal name. Lenders underwrite the entity and require personal guarantees from the principals. This is different from residential purchases, which are typically made in personal name.
Non-recourse vs recourse. Some commercial loans are non-recourse — the lender's only remedy in default is the property. Most commercial loans for smaller transactions are recourse, meaning personal guarantees apply. Understanding this distinction matters when evaluating risk.
Speed and Process
Commercial loan processes are slower and more complex than residential. Appraisals take longer. Environmental reviews may be required. Lender committees review larger deals. Plan for 45 to 60 days for a standard commercial purchase — and build that into your purchase contract's financing contingency period.
Where to Start
The transition from residential to commercial investing is manageable with the right guidance. Understanding which metrics drive underwriting, which loan types fit which properties, and which lenders specialize in your asset class is the foundation. A broker who works exclusively in commercial real estate can accelerate that learning curve significantly.
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Talk to KQT AdvisorsKQT Advisors is a commercial loan broker and does not make lending decisions. All loan approvals, rates, and terms are subject to lender underwriting. Information in this article is for general informational purposes only.
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