To read a self-storage offering memorandum like a buyer, extract the facts and re-underwrite the conclusions: start with in-place (trailing) net operating income rather than the pro forma, verify economic vacancy against the occupancy headline, re-underwrite property taxes to the post-sale basis, check that in-place rents actually sit below the comp set, and apply a market cap rate to defensible NOI to produce a value band. Michael R. Linton, Florida Broker #BK703722, walks through each step below.
An offering memorandum is a sales document, not an appraisal. Your job as a buyer is to keep the facts, discard the conclusions, and re-underwrite the deal to in-place income before a single number impresses you.— Michael R. Linton, Florida Broker #BK703722, Founder of Linton Global Solutions
What an Offering Memorandum Actually Is (and Isn’t)
An offering memorandum — the OM — is the marketing package a listing broker prepares to sell a commercial property. A good one is professional, data-rich, and honest. It is also, by design, the most flattering true story that can be told about the asset. The photos are shot at golden hour, the market narrative leads with tailwinds, and the financials lean on a forward pro forma that assumes the new owner executes flawlessly.
None of that is deceptive; it is the job of the document. The buyer’s job is the mirror image: keep every verifiable fact — the unit mix, the rent roll, the trailing financials, the location data — and set aside every conclusion until you have re-underwritten it yourself. Read the OM twice. The first pass is for the story. The second pass is for the numbers, in the order below.
Start With In-Place NOI, Not the Pro Forma
Every OM shows at least two columns: trailing actuals and a multi-year pro forma. The single most important discipline in reading it is to anchor on the in-place net operating income — what the facility actually earned over the trailing period — and to treat the pro forma as a separate upside case you must justify line by line.
Net operating income is effective gross income minus operating expenses, before debt service and capital items. In-place NOI is the reality of the asset today. The pro forma is the seller’s belief about tomorrow, and it usually bakes in aggressive rent growth, a lease-up to stabilized occupancy, and new income lines the current owner never actually ran. You buy the reality. You pay for the dream only when a credible, funded business plan — your plan — supports it.
The pro forma is the seller’s dream and the in-place NOI is the asset’s reality. You buy the reality and you pay for the dream only when a funded business plan makes it real.— Michael R. Linton, Florida Broker #BK703722, Founder of Linton Global Solutions
The Five Numbers That Set the Value
A storage OM can run twenty pages, but the value lives in five numbers, in this order:
1. Gross Potential Rent (GPR). Every unit at its asking rate, fully occupied. It is the ceiling, not the reality. 2. Economic vacancy / collection allowance. The deduction from GPR for physical vacancy, concessions, delinquency, and comped units — more on this below. 3. Effective Gross Income (EGI). GPR plus ancillary income (tenant insurance, late fees, admin fees) minus economic vacancy. 4. Operating expenses. Taxes, insurance, utilities, payroll, management fee, R&M, marketing — expressed as a percentage of EGI (the expense ratio; healthy storage often runs the low-to-mid 30s). 5. Net Operating Income. EGI minus expenses — the number the whole valuation hangs on.
Verify each from the trailing actuals and the rent roll, not the pro forma column. If a number in the OM’s conclusion cannot be traced back to these five, it is an assumption, not a fact.
Get the next Florida CRE report.
Cap rates, absorption, distress watch — delivered when it ships. No spam.
Four Traps Hiding in a Storage OM
These are the four places a marketed value most often overstates a buyer’s real return. None of them require the seller to have done anything wrong — they simply require the buyer to read carefully.
Trap 1 — The pro forma rent bump the comps don’t support. A pro forma may assume a double-digit first-year rent increase. Cross-check it against the OM’s own rent-comparable page. If the subject’s in-place rents already sit at or above the competitive set on a given unit type, the organic rate upside for that type is thin — and the assumed increase is not underwritable.
Trap 2 — The property-tax reassessment on sale. In many jurisdictions the assessed value resets to the purchase price at closing. If the OM notes “taxes adjust on sale” but the pro forma holds the tax line flat at the current owner’s basis, the buyer must re-underwrite the higher post-sale bill. On a mid-single-million acquisition this can be tens of thousands of dollars a year — straight out of NOI.
Trap 3 — Occupancy vs. economic occupancy. “90% occupied” is a physical count. Economic occupancy — what is actually collected against GPR — can be materially lower once concessions, delinquency, and owner-comped units are removed. Read the collection-allowance line and the economic-vacancy percentage, not just the occupancy headline on the cover.
Trap 4 — Interest-only debt flattering coverage. An OM’s financing assumptions often use interest-only terms, which make the debt-service coverage ratio look stronger than it will be once the loan amortizes or is refinanced. Stress every deal on amortizing debt and on a refinance at maturity, not on the headline interest-only payment.
From NOI to a Value Band: the Cap Rate
Once you hold a defensible in-place NOI, value is arithmetic: value = NOI ÷ cap rate. The cap rate is the market’s required first-year return for that asset, in that location, at that quality. Tertiary and rural storage trades at higher cap rates (lower prices) than primary-market institutional product; a stabilized, well-located facility trades tighter than a lease-up story.
Rather than a single point, apply a range. Capitalizing defensible NOI across a market cap-rate band produces a value floor, a target, and a ceiling — and a disciplined offer is anchored to the floor, not the seller’s marketed conclusion. Sanity-check the result on a price-per-square-foot and price-per-unit basis against replacement cost: if the marketed price implies a number well above what it would cost to build the facility today, the burden of proof shifts back to the pro forma.
The Read, in Order
How Linton Global Scores a Deal
The five numbers and four traps above are the manual version of a discipline we have systematized. For commercial decisions, Linton Global Technologies runs the CREDDS Framework — a structured Asset Disposition Brief that scores a commercial property on three weighted dimensions: Financial Health (40 points), Operational Stability (30 points), and Undervaluation Signal (30 points). It forces every deal through the same questions — is the in-place income real, is the operation stable, and is the price below defensible value — so the answer does not depend on how good the OM made the asset look. CREDDS is one analytical output of REOMind.ai, the commercial real estate intelligence platform owned by Linton Global Technologies.
Have a Broker Read the OM With You
The fastest way to lose money on a commercial acquisition is to accept the OM’s conclusion as your underwriting. Before you write an LOI, have an advisor who underwrites — not just lists — read the package with you: re-derive the in-place NOI, pressure-test the pro forma, and turn it into a value band and an offer strategy. Michael R. Linton holds Florida Broker license #BK703722 and advises buyers across Florida from the Florida commercial broker desk; for acquisitions outside Florida, Linton Global Solutions coordinates with a referral partner in that market.
See This Applied to a Live Distressed Deal
The commercial webinar walks the same underwriting discipline through a real Florida distressed acquisition — sourcing, NOI, and the offer. Free, live, on-demand replay included.
Reserve a Seat · Oct 15 & 29 →Frequently Asked Questions
What is an offering memorandum in commercial real estate?
An offering memorandum (OM) is the marketing package a listing broker prepares to sell a commercial property. It presents the asset, the market, the rent roll, and the financials in the most favorable honest light. It is a sales document, not an appraisal — so a buyer reads it to extract the facts and re-underwrites the conclusions independently.
Should I underwrite to in-place NOI or the pro forma?
Underwrite to in-place (trailing, actual) net operating income first, then treat the pro forma as a separate upside case you must justify line by line. In-place NOI is what the asset produces today; the pro forma is what the seller believes it could produce. You buy the first and pay for the second only when a credible, funded business plan supports it.
What is economic vacancy in a self-storage OM?
Economic vacancy is the gap between gross potential rent and what is actually collected — it captures physical vacancy plus concessions, delinquency, and below-market or comped units. A facility can be 90% physically occupied and still carry 18% economic vacancy, so read the collection allowance line, not just the occupancy headline.
Why do property taxes matter when buying self storage?
In many states the assessed value resets to the purchase price when a property sells, so the taxes in the OM reflect the current owner’s basis, not yours. If the pro forma holds taxes flat while the memo notes they adjust on sale, the buyer must re-underwrite the higher post-sale tax bill — it can move NOI by tens of thousands of dollars a year.
How does a cap rate turn NOI into value?
Value equals net operating income divided by the capitalization (cap) rate. Lower cap rates mean higher prices; higher cap rates mean lower prices. On defensible in-place NOI, applying a market cap rate range gives a value band — a floor, a target, and a ceiling — which is where a disciplined offer comes from.
I read offering memoranda for a living, and the discipline never changes with the asset class: keep the facts, re-underwrite the conclusions, and let the in-place income — not the pro forma — set your price. Teach a buyer to do that and you have given them something worth more than any single deal.
