Who Account Adjustment Bureau is
Account Adjustment Bureau is a third-party collection agency headquartered in Ann Arbor, Michigan. It works accounts on a contingency basis, which means it is hired by original creditors to collect on their behalf and earns a cut of what it recovers. It does not own your debt, and it is not a debt buyer that purchased your account for pennies on the dollar. In practice, that changes who you are really dealing with: behind the agency there is a specific creditor, and its core focus is rental and landlord-tenant accounts. If you recently moved out of an apartment, the balance being collected is usually some mix of unpaid back rent, an early-termination or lease-break fee, and charges for damage or cleaning left after your security deposit was applied. The agency also handles other consumer accounts, but the rental and property-management angle is the one that trips people up most, because a former landlord's claim can quietly follow you into your next lease application.
Confirm the exact name
Before anything else, read the letterhead carefully. "Account Adjustment Bureau" looks and sounds a lot like "American Adjustment Bureau," but that is a completely different company. Do not assume they are the same organization, and do not act on anything you may have read about a similarly named firm. The two are unrelated. Simply confirm that your notice actually says "Account Adjustment Bureau" and lists an Ann Arbor, Michigan address. If the name or location does not match, or if the letter routes payment somewhere else entirely, treat that as a reason to slow down and verify -- not as proof you owe whoever mailed it. Getting the name and address right protects you both from mixing up companies and from responding to an impostor using a familiar-sounding brand.
Is it a scam?
No -- Account Adjustment Bureau is a legitimate, licensed collection agency, not a scam operation. That said, a legitimate collector is not the same as a valid, provable, enforceable debt, and legitimate agencies still make mistakes: wrong amount, wrong person, a balance that was already paid or that a former roommate owes, or an account past its statute of limitations. Separate the two questions. Verify the caller is really the agency (confirm the Ann Arbor, Michigan name and address, and any account reference on your own paper copy). Then make them prove the debt in writing. Genuine impostor red flags are different in kind: demands for gift cards, wire transfers, cryptocurrency, or prepaid cards; threats of immediate arrest or jail; refusal to send anything in writing; or pressure to pay "today" before they will identify themselves. A real agency will document the debt and honor your rights; a phishing scam will not.
If this is a rental or apartment balance
Most people hearing from this agency are dealing with a former landlord. The good news is that a leftover apartment balance is an unsecured debt -- there is no collateral to repossess, which means it is negotiable. Two facts work in your favor. First, your former landlord generally has a duty to mitigate: once you leave, they are expected to try to re-rent the unit, and rent they collect from a new tenant should reduce what they can claim from you. Second, being evicted is about possession of the apartment, not the money -- an eviction judgment for possession does not automatically fix the dollar amount you owe, so the balance the agency quotes is still open to challenge and to negotiation with the former landlord. Protect your future renting too: tenant-screening companies are consumer reporting agencies under the FCRA, so if a screening report shows a rental collection that is inaccurate, incomplete, or not yours, dispute it under section 611 and demand a correction. Use a written validation request to force the agency to name the specific landlord or property manager and itemize back rent, fees, and damages -- that breakdown is exactly what you need to spot mitigation the landlord ignored or charges that were double-counted.
Your FDCPA rights, the SOL trap, and settling
Under the Fair Debt Collection Practices Act you have a 30-day window after their first contact to demand validation in writing. Send your request by mail, keep a copy, and put every dispute in writing so there is a paper trail. Watch the statute of limitations trap: on an older balance, making even a small payment or signing a new written promise to pay can restart the clock and make a debt collectible again that may otherwise have been time-barred -- so confirm the age of the account before you agree to anything. If you are ever served with a lawsuit, never ignore the summons; file a written answer with the court by the stated deadline, because failing to respond is how a routine collection turns into a default judgment. Once you have confirmed the debt is genuinely yours and the amount holds up, a validated unsecured balance can usually be settled for less than the full total. Get any settlement in writing before you send money, and remember the tax angle: if a creditor forgives more than $600, that forgiven amount can be reported to the IRS on a 1099-C as taxable income.
This page is general information, not legal or tax advice. Your rights and timelines vary by state; consider consulting a qualified attorney, a nonprofit credit counselor, or legal aid.