How Commercial Loan Underwriting Works: What Happens After You Submit Your Deal

Commercial loan underwriting is a process most borrowers experience as a black box. You submit a package, wait, and eventually get either an approval with conditions or a decline with vague language. What actually happens in between is worth understanding, because the borrowers who close commercial deals efficiently are the ones who understand what the underwriter is trying to determine.

I'm based in Bakersfield and most of my deal flow is Kern County commercial real estate, but the mechanics below are not local rules. Commercial underwriting works the same way whether the property is in Bakersfield, Boise, or Baton Rouge, and through my commercial real estate lender network I place deals nationwide, not just in Kern County. That's actually one of the bigger differences between commercial and residential lending that borrowers don't realize: a residential loan officer usually needs a state license where the property sits, but most commercial and DSCR loan programs are underwritten to the deal, not your zip code. The lender pool doesn't shrink because you're calling from outside California.

With that said, here is how commercial loan underwriting actually works.

What Underwriting Is Actually Doing

The underwriter's job is to independently verify that the deal presented in your loan package is real, that the property will support the debt, and that the borrower can perform on the loan if conditions change.

They are not trying to find reasons to decline. They are trying to answer: what is the realistic NOI from this property, what happens to the debt service coverage if occupancy drops 10%, and does this borrower have the capacity and track record to manage the asset?

Every document in your package is answering one of those questions.

The Document Review Phase

The first stage is document review. For an investment property purchase, that means reviewing the rent roll, operating statements, leases, and tax returns for the property, regardless of which state it's in. For an owner-occupied deal using SBA 504 or 7(a), it means reviewing the business's financial statements and personal returns alongside the real estate.

Common issues at this stage:

Rent rolls that don't match the operating statements. If the rent roll shows 95% occupancy but the operating income is consistent with 80% occupancy, the underwriter will ask why and won't credit the higher occupancy in their calculation.

Operating statements that exclude expenses the lender knows the property incurs. Sellers sometimes present "adjusted" NOI that strips out management fees (because they self-manage), capital expenditure (because they defer maintenance), or unusual one-time income. Underwriters add back realistic management costs, apply a standard capex reserve, and stabilize income to a conservative level.

Tax returns that show significantly less income than the operating statements suggest. Self-employed borrowers often optimize tax returns for minimum taxable income. That's rational tax strategy, but it creates a documentation problem for commercial loans that underwrite to personal income. DSCR loans avoid this problem by underwriting to property income instead of personal income.

The Appraisal: Where Deals Often Diverge from Expectations

The appraisal is the most consequential third-party report in a commercial deal. The underwriter orders an appraisal from an approved appraiser, and that appraiser independently determines the property's market value using comparable sales, the income approach (applying a market cap rate to stabilized NOI), and sometimes a replacement cost approach.

The deal works if the appraised value is at or above the purchase price and the NOI supports the required DSCR at the loan amount. The deal gets complicated when either condition isn't met.

A property that appraises below the purchase price creates a loan-to-value problem, whether it's in Bakersfield or anywhere else. The lender's maximum loan is based on the appraised value, not the contract price. If you agreed to pay $1.8M but the property appraises at $1.65M, your down payment requirement just increased.

A property where the appraiser calculates lower NOI than the seller's pro forma creates a DSCR problem. The lender will use the appraiser's income figure, not the seller's, and the maximum loan amount adjusts accordingly.

I prepare commercial borrowers for this by running the numbers conservatively before we go to lenders. If the deal only works at the seller's optimistic NOI, it's a fragile deal structure and it will likely get retradeed or declined in underwriting.

Third-Party Reports Beyond the Appraisal

Depending on property type, commercial underwriting also requires:

Phase 1 Environmental Assessment: standard for most commercial transactions, mandatory for industrial and properties with prior environmental use history. Every region has its own version of this risk. In Kern County, that means properties in or near oilfield-service areas. In other markets it might be a former dry cleaner, an old gas station, or agricultural chemical use on the parcel's history. Phase 1 identifies recognized environmental conditions. A Phase 2 involves physical sampling and is required if Phase 1 turns up concerning conditions.

Property Condition Assessment: often required for larger multi-family or commercial transactions. An engineer walks the property and documents deferred maintenance, capital expenditure needs, and expected useful life of major systems. Lenders use this to set reserves and sometimes to require repairs as conditions of funding.

Survey: determines the property's legal boundary and identifies encroachments or easements that could affect value or use.

Zoning confirmation: the lender confirms that the intended use is permitted under current zoning and that there are no outstanding code violations.

The Conditional Approval Stage

Most commercial deals reach a "subject to" or conditional approval before final approval. The conditions list is where borrowers who don't understand the process get frustrated.

Common conditions: completion of specified repairs before funding, proof of insurance meeting lender requirements, lease execution for vacant spaces, personal financial statement updates, and resolution of any title issues identified in the preliminary title report.

Conditions are not a problem. They are a normal part of the commercial lending process. What matters is whether the conditions are satisfiable within your transaction timeline and whether they affect the economics of the deal.

What Kills Deals Late in the Process

Late-stage deal failures usually trace back to one of three sources: something discovered in due diligence that wasn't disclosed upfront (an environmental issue, a tenant in default, a lawsuit on the property), a material change in the borrower's financial position between application and close, or a change in lender appetite that causes them to retrade the terms.

The first is preventable with thorough seller due diligence before you go under contract. The second requires keeping your financial profile stable during the transaction period, meaning no new credit lines, no large deposits without documentation, and no changes in employment.

The third is where working with a broker rather than a single lender matters most, and it matters the same way regardless of state. If a lender retrades late, I have 2,600+ other lenders to go to. A borrower who went direct to a bank has no backup.

How I Prepare Commercial Deals for Underwriting

Before I submit any commercial deal, in Kern County or any other state I'm placing financing in, I package the file the way the underwriter wants to see it, not just the way the borrower wants to present it. That means normalizing the operating statements, anticipating the likely appraised value, pulling comparable sales to validate the purchase price, and identifying any property or borrower issues that will surface in due diligence. See how this plays out in practice in these commercial case studies.

Deals that hit lenders fully packaged and without surprises close faster, at better terms, and with fewer retraded conditions than deals submitted raw. That's true whether I'm packaging a Bakersfield strip mall or an apartment deal three states away.

If you want to see how this process holds up against the alternative, why investors use a commercial mortgage broker breaks down what changes when you have one. And if you are getting ready to submit a commercial deal anywhere in the country and want to understand how it will underwrite before it hits a lender's desk, call me or submit the deal through the commercial intake form. The review is free and the conversation will tell you exactly what to expect.