How to read a rent roll before you buy

The rent roll is usually the first document an investor reads and the last one anyone checks. It’s a one-page table, it looks official, and on a duplex in Mesa or a fourplex in Tempe it often decides the price. But nobody signs it under oath. It’s a seller’s summary, sometimes typed by a property manager, sometimes by the seller the night before listing. Here’s how to read one and how to prove it.

What a rent roll shows

A useful rent roll has one row per unit and at least these columns:

1. Unit number or address.
2. Tenant name.
3. Lease start and end dates, or “month to month.”
4. Current monthly rent.
5. Security deposit and any other refundable deposits held.
6. Balance owed or prepaid.
7. Any recurring charges beyond rent, such as pet rent or utility reimbursements.

If the roll you receive is missing the deposit and balance columns, ask for them. Under the Residential Income Property Addendum, the seller delivers current rent rolls and a list of current deposits within five days of acceptance, unless another number is written in, so the two lists should arrive together.

The lines that lie

A misleading rent roll usually isn’t a forged one. It’s optimistic, and the optimism hides in predictable places:

1. Scheduled rent shown as collected rent. A roll lists what each tenant owes, not what came in. A tenant two months behind can look identical to one who pays early.
2. Market rent in the rent column. Some rolls show what a unit “should” rent for. If a vacant unit carries a rent figure, ask whether it’s a signed lease or a guess.
3. Concessions that aren’t on the roll. A free first month or a reduced rent for a tenant doing yard work shows up in the lease or a side letter, not the summary.
4. Month to month dressed as a lease. An expired fixed term continues month to month under the standard Arizona lease unless someone gave notice, and a month-to-month tenancy can end on thirty days’ notice before the next rent date. That is a different risk than a signed renewal.
5. Fees counted as rent. Late fees and dishonored-payment fees are collectible as rent under the lease, but they aren’t income you should count on.
6. Deposits that don’t reconcile. The standard lease caps security, including prepaid rent, at one and a half months’ rent unless the tenant volunteers more, and says in capitals that refundable deposits are not a credit toward last month’s rent. A deposit well above that cap, or a tenant who says the deposit is their last month, is a question.

Check the roll against the leases

The addendum requires the seller to deliver copies of every lease and rental agreement, the tenants’ applications, move-in forms, any crime-free addenda and service contracts. That’s your verification set. For each unit:

1. Match the tenant names on the roll to the names on the lease. The lease limits occupancy to the persons named.
2. Match rent, due date and late charge to the lease.
3. Match the lease term to the roll’s start and end dates.
4. Read the utilities clause. The standard lease has the tenant pay all utilities except those listed, and a checkbox grid decides who handles pool, pest control and yard care.
5. Look for addenda that change the rent or the term.
6. Confirm there’s an application and a move-in form for each tenant. A tenant with no application on file is a tenant nobody screened.

Any mismatch goes on your list for the seller, in writing, before the objection window closes.

Check the roll against the money

Leases prove what was agreed, not what was paid. Two more sources close that gap.

If a property manager runs the building, the AAR property management agreement has the manager deposit rents and security deposits into a trust account and send the owner periodic accountings that include deposit balances. Ask for twelve months of those statements under the addendum’s catch-all for other documents and reports in the seller’s possession. Compare them month by month against the roll.

If the seller self-manages, ask for the bank deposit records or ledger. A seller who won’t produce anything showing rent actually received is telling you something.

Also read the most recent rental or transaction privilege tax bill the addendum requires, if one exists. The standard lease form notes that cities stopped levying that tax on residential leasing as of January 1, 2025, so on a long-term rental the most recent bill may be older than the roll. Whatever it shows about past reported rent is one more data point; what it means for you is a CPA question.

Estoppel-style verification

In commercial deals, tenants sign estoppel certificates confirming their rent, deposit and lease terms. The AAR commercial purchase contract has a checkbox for them. The residential income addendum for one to four units does not address estoppels at all, and nothing in the standard lease obligates a tenant to sign one.

You can still ask. A short tenant confirmation, stating rent, due date, deposit paid, lease end date, and that no prepaid rent or side agreements exist, can be requested through the seller and written into the contract’s additional terms. How to word it, and what happens if a tenant refuses, is a question for your attorney. What matters is timing: the addendum’s disapproval window is the later of the inspection period or five days after you receive the documents, so ask early.

Red flags

1. Every unit shows the same rent regardless of size or lease date.
2. Lease start dates cluster in the months just before listing.
3. Deposits on the roll don’t match the deposit list or the manager’s statements.
4. A tenant is missing an application, a move-in form or a signed lease.
5. The seller refuses entry to one unit.
6. The roll and the seller’s disclosure disagree on who holds the deposits.

On a building that pencils, you won’t have long: the typical single-family home in Mesa and Tempe sells in a median 47 days (Cromford Report / ARMLS, data 9/15/26, analysis mine). Write the offer with the income addendum attached and do the verification inside the contract, not before it.

What I do for you here

I’m an Associate Broker with Keller Williams Integrity First Realty, based in Gilbert, with more than 500 transactions closed and investor portfolio work behind me. On an income property I attach the addendum, track its five-day delivery, reconcile the roll to the leases, the deposit list and the money, and put every mismatch in writing before your window closes. Valuation of the income for tax or lending purposes is for your CPA and lender; the Arizona contract says brokers don’t give financial or tax advice.

Send me a rent roll and I’ll mark what needs proof. Text or call (602) 610-3172, or email ryan@ryanharju.com.