Does a wrap seller have to disclose the due on sale risk to the buyer in writing before closing

VA loans are the one underlying where acceleration is not theoretical. Servicers do act on it.

The honest answer on Arizona specifically is that there is no standalone disclosure statute naming due-on-sale as a required line item the wrap seller has to deliver before closing. What Arizona does have is the residential seller disclosure framework around A.R.S. 33-741, and that covers property condition rather than financing structure risk. Your attorney calling it best practices is technically accurate and also a bit of a dodge, because the seller's real exposure lives in common law fraud and concealment if they knew the risk and said nothing, and that is where the teeth are. Fraud and concealment claims carry weight in Arizona courts and they attach without any written disclosure mandate. Where the leverage sits right now is in the note terms themselves. Take a wrap on a $340k purchase with a conventional underlying at 3.75 and a wrap rate of 6.25. A well negotiated version of that note makes the wrap seller responsible for the cost of a cure or refinance if the lender accelerates within the first 36 months, capped somewhere around $8,500, with a 90 day notice window and a right for the buyer to assume the underlying before the seller can agree to any acceleration. None of that is standard language and sellers push back hard on it, yet it moves the exposure to the party who created it. On a VA underlying the acceleration risk is genuinely higher because VA transfer language is stricter, so the ask should be a longer cure window and a higher cap than that example carries. The note is the negotiating lever, and the disclosure conversation is secondary to it.

VA loans have a specific federal overlay that makes silence on this legally murkier than your attorney is letting on.

I funded a wrap in Tempe in 2021, seller said nothing in writing about due-on-sale, buyer defaulted nine months in, lender called the note, buyer sued seller for fraudulent concealment and won $38k in damages plus fees because Arizona recognizes that omitting a known material risk can constitute fraud even without an affirmative disclosure statute.

No clean case law that says "seller must disclose" but that Tempe outcome should change how you negotiate right now.

Your attorney's "best practices" framing is technically accurate, and it buries the real exposure. Arizona does not have a standalone wrap-specific disclosure statute, so you will not find a bright-line ARS section that says "seller must disclose due-on-sale in writing." What you do have is Arizona's general fraud and misrepresentation framework, and if the seller knew the VA servicer could accelerate and said nothing, that is a concealment argument under common law rather than a statutory disclosure failure. Those cases are harder to win but they exist and they have been litigated. The VA piece is what actually changes your negotiating position, more than the Arizona law question does. VA loans carry a federal guarantee and the servicer has different incentive structures than a conventional lender sitting on their own paper. They are more likely to accelerate on transfer discovery because they have reporting obligations to VA that a portfolio lender simply does not have. Phoenix title companies have gotten noticeably more cautious about wraps since 2022 and some will flag the underlying VA loan during the title search before you even close, which means the servicer could get wind of it through that channel without anyone tipping them off directly. The thing to push for in the note right now is an indemnification clause where the seller bears costs if acceleration happens, including your refi costs at prevailing rates at the time of the call. If they will not sign that, the risk allocation sits entirely on you, and the spread at 6.5 on a 410k wrap does not compensate for it. Get that indemnification or reprice the note before you move forward.

VA loans add a federal layer most wrap discussions skip. The VA's own servicing guidelines treat unauthorized transfer as a trigger separate from the lender's contractual due-on-sale clause, so there are two institutions that could move on this, the lender and the VA. On the disclosure question, Arizona's consumer fraud statute at A.R.S. 44-1522 covers material omissions, and a court could treat silence about acceleration risk as an omission if you later argued you would have priced differently or walked. That is not settled case law, though it is the angle a plaintiff's attorney would run. Negotiate a clause right now requiring the seller to indemnify your closing costs and any acceleration-related expenses if the lender calls the note within 36 months, because that converts the disclosure gap into a contractual protection you own regardless of how Arizona courts would eventually rule.