To buy commercial property, you define an investment strategy, secure financing, sign a letter of intent and then a purchase agreement, complete due diligence, and close through a title company or escrow agent. Most buyers need 15% to 30% of the purchase price in cash, and the full process typically runs 60 to 120 days from initial offer to recorded deed. The timeline shifts with financing complexity, the number of tenants in place, and whether environmental or zoning issues surface during inspections.
Step 1: Pick the Property Type and Location
Your first decision is what kind of building you want to own. Office properties generate income from professional tenants on multi-year leases but carry vacancy risk when employers shift to remote work. Retail centers anchored by grocery stores or pharmacies tend to produce stable foot traffic, and many retail leases are structured as triple-net deals, where the tenant pays property taxes, insurance, and maintenance on top of base rent. Industrial warehouses and distribution facilities often involve fewer tenants and lower turnover, though they require specific features like high ceilings and loading docks. Multi-family complexes with five or more units demand active tenant management but spread risk across a larger rent roll.
Location matters as much as asset class. Look at vacancy rates in the specific submarket, not just the metro-wide average, because a city with 8% overall office vacancy might have a downtown corridor at 4% and a suburban park at 15%. Employment growth, population trends, and local infrastructure projects all drive long-term values. The intersection of asset type and location defines the pool of properties you’ll evaluate and the lenders willing to finance them.
Step 2: Line Up Your Financing
Add up the liquid assets you can commit to the deal. Commercial lenders typically require a down payment between 15% and 30% of the purchase price, depending on property type, borrower strength, and loan program. You’ll need a proof-of-funds letter from your bank or brokerage confirming you can cover the equity requirement. Budget separately for closing costs, which generally run 3% to 5% of the purchase price and cover items like title insurance, surveys, legal fees, and transfer taxes.
Lenders test whether the property’s income can carry the debt using the debt service coverage ratio, or DSCR. A DSCR of 1.25 means net operating income is 25% higher than annual loan payments. Most lenders treat 1.25 as the floor, and stronger ratios give you leverage on rates and terms.
If you plan to occupy part of the building for your own business, two SBA programs are worth a look. SBA 504 loans, offered through Certified Development Companies, fund the purchase of land, existing buildings, or new construction up to $5.5 million and can require as little as 10% down for owner-occupied property. SBA 7(a) loans offer up to $5 million with similar down-payment flexibility and broader eligible uses, though they cannot fund speculative investment in rental real estate.1U.S. Small Business Administration. 504 Loans Conventional commercial mortgages from banks and credit unions usually demand more equity but stay open to pure investment properties with no owner occupancy.
Step 3: Assemble the Loan Documentation
Commercial lenders underwrite both the borrower and the property, so the paperwork is heavier than in a residential deal. Expect to provide at least three years of federal tax returns. Corporations file on IRS Form 1120, while partnerships and multi-member LLCs file on Form 1065.2Internal Revenue Service. Instructions for Form 1120 Lenders read those returns for consistency and growth, not a single strong year.
You’ll also need year-to-date profit and loss statements, a balance sheet, and a personal financial statement for any individual guaranteeing the loan. On recourse loans, the lender can pursue your personal assets if the borrower entity defaults, which is why they want a full picture of your net worth.
For properties with existing tenants, the lender will request a current rent roll listing each tenant, lease expiration date, monthly rent, and any concessions or outstanding balances. Alongside the rent roll, order tenant estoppel certificates before closing. An estoppel certificate is a signed statement from each tenant confirming the key terms of their lease, including current rent, whether payments are current, and whether any disputes exist with the landlord.3U.S. House of Representatives. Estoppel Certificate These protect you from discovering after closing that a tenant claims different terms than the seller represented.
Step 4: Sign a Letter of Intent, Then a Purchase Agreement
Most commercial deals start with a Letter of Intent. The LOI outlines the proposed purchase price, earnest money deposit, due diligence period, expected closing date, and major contingencies. It is not a binding contract for the sale itself, but it locks in the framework before either side pays attorneys to draft the full agreement.
Once both parties sign the LOI, attorneys draft the Purchase and Sale Agreement. The PSA turns those broad terms into enforceable obligations: the legal description of the property, the exact earnest money amount, specific start and end dates for due diligence, and detailed contingency clauses. Common contingencies let you walk away and recover your earnest money if financing falls through, if the Phase I environmental assessment reveals contamination, or if the property fails to appraise at or above the purchase price.
Track when your earnest money goes “hard.” In most commercial contracts, the deposit is refundable during due diligence but becomes non-refundable once that window closes. Missing a deadline without a written extension can cost you the whole deposit. Due diligence in commercial deals typically runs 30 to 60 days, longer than a residential transaction because the investigations are more complex.
Step 5: Run Due Diligence
This is where deals survive or die. Skipping steps here is the fastest way to buy someone else’s problems.
Zoning and Certificate of Occupancy
Contact the local planning or zoning department to confirm the property allows your intended use. A building that operates as a warehouse doesn’t necessarily permit a retail conversion. If zoning doesn’t match, you’ll need a variance or conditional use permit, which adds time and uncertainty. Also confirm the property holds a valid certificate of occupancy for its current use.
ALTA Survey
Order an ALTA/NSPS Land Title Survey. This is not a simple boundary survey. It maps precise boundaries, identifies easements and rights of way, flags encroachments from neighboring properties, and shows the footprint of existing structures relative to setback lines. Lenders and title companies rely on it to issue coverage. Cost runs from roughly $3,000 for a straightforward parcel to $15,000 or more for large or complex sites.
Building Inspection and ADA Review
A commercial inspection covers structural integrity, roof, HVAC, plumbing, electrical, fire suppression, and elevators, often using specialized engineers for individual systems. Check ADA compliance too. The ADA Standards for Accessible Design require removal of architectural barriers in existing commercial buildings when readily achievable, and any renovations you do after acquisition must meet current accessibility requirements.4ADA.gov. ADA Standards for Accessible Design Retrofits are expensive, so factor that into your offer.
Environmental Assessment
Federal law makes environmental investigation non-optional. Under CERCLA, a new owner can be held responsible for cleaning up contamination that predates their ownership, regardless of who caused it.5US EPA. Superfund Landowner Liability Protections To qualify for liability protection as a “bona fide prospective purchaser,” you must complete “all appropriate inquiries” before closing, which means ordering a Phase I Environmental Site Assessment. The Phase I reviews historical records, aerial photographs, government databases, and site conditions to identify recognized environmental conditions.6U.S. Environmental Protection Agency. Common Elements and Other Landowner Liability Guidance Expect roughly $2,000 to $3,500 for a standard commercial property, climbing to $6,000 or more for industrial facilities. If the Phase I flags anything, a Phase II involving soil and groundwater sampling follows, adding thousands more and potentially ending the deal.
Appraisal
For any federally related loan on a commercial property valued above $500,000, the lender must obtain an appraisal from a state-certified appraiser.7eCFR. 12 CFR Part 323 – Appraisals The appraiser uses income, comparable sales, and replacement cost approaches. If the value comes in low, you’ll renegotiate, bring extra cash, or exercise your appraisal contingency to exit.
Step 6: Close the Transaction
Once due diligence wraps and your lender issues a loan commitment, the deal moves toward closing. The buyer wires earnest money to a neutral third party, usually a title company or escrow agent, who holds funds until closing.
The title company searches public records to confirm the seller holds clear title with no undisclosed liens, judgments, or encumbrances. If issues surface, the seller must resolve them before closing or negotiate a price reduction. Title insurance protects you and your lender against defects the search missed. Premiums vary widely by state, but on a $1 million policy expect somewhere in the range of $2,000 to $8,000 for an owner’s policy, with the lender’s policy adding a smaller amount on top.
Before signing, conduct a final walkthrough. Verify that the building’s condition hasn’t changed, confirm negotiated repairs were completed, and check that fixtures or equipment the seller agreed to leave are still there. For multi-tenant properties, spot-check common areas and vacant units.
At closing, several shared expenses get prorated based on the closing date. Property taxes are the biggest item. If the seller paid taxes for the full year, you reimburse their share for the period after closing; if taxes aren’t paid yet, the seller credits you their share. Rents work the same way: the seller keeps rent for the days they owned the property, and you receive rent for the remaining days of the month.
On the closing date, both parties sign the deed, the mortgage or deed of trust, and the settlement statement. The settlement statement, typically on a standardized ALTA form, itemizes every fee and credit for both sides.8American Land Title Association. ALTA Settlement Statements After signatures and loan proceeds arrive, the title company disburses funds to the seller and records the deed with the county recorder. Recording is the official public notice that you own the property.
One more line item catches buyers off guard: transfer taxes. About two-thirds of states impose a transfer tax or documentary stamp fee when real property changes hands, with rates ranging from small flat fees to as high as 5% of the sale price. Some cities layer their own tax on top. Your title company or closing attorney will calculate the exact amount.
Step 7: Plan the Tax Side Before You File
Commercial real estate offers real tax advantages, but capturing them requires planning that starts before your first filing as the new owner.
The IRS treats commercial buildings as depreciable assets with a 39-year recovery period for nonresidential property and 27.5 years for residential rental property. Straight-line depreciation spreads the building’s cost (minus land value) evenly across those years, creating a non-cash deduction against your taxable income. A cost segregation study can accelerate that timeline by identifying components like carpeting, specialized electrical systems, parking lot paving, and landscaping that qualify for 5-, 7-, or 15-year lives instead of 39. The study typically costs $5,000 to $15,000, usually dwarfed by tax savings in the first few years.
For property acquired and placed in service after January 19, 2025, the One Big Beautiful Bill Act permanently restored 100% bonus depreciation under Section 168(k), allowing eligible property components to be fully expensed in the year of acquisition rather than depreciated over their normal recovery period.9Internal Revenue Service. Interim Guidance on Additional First Year Depreciation Deduction Under Section 168(k) Paired with a cost segregation study, this can generate a substantial first-year deduction on components that would otherwise trickle out over decades.
When you eventually sell at a gain, Section 1031 lets you defer the capital gains tax by reinvesting into another qualifying property through a like-kind exchange. The rules are strict: identify replacement property within 45 days of selling and complete the exchange within 180 days. The exchange applies only to real property held for business use or investment, not property held primarily for resale, and both the relinquished and replacement properties must be located in the United States.10Office of the Law Revision Counsel. 26 U.S. Code 1031 – Exchange of Real Property Held for Productive Use in a Trade or Business or for Investment A qualified intermediary must hold sale proceeds during the exchange window; if you touch the money, the exchange fails. Many investors use 1031 exchanges to trade smaller properties for larger ones over a career, compounding gains without triggering tax along the way.