Does the 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 isn't theoretical, servicers actually do it.

The honest answer on Arizona specifically is that there is no standalone disclosure statute that names due-on-sale as a required line item the wrap seller has to deliver to you before closing. What Arizona does have is A.R.S. 33-741 through the residential seller disclosure framework, but that covers property condition, not financing structure risks. Your attorney calling it "best practices" is technically accurate and also a little bit of a dodge, because the exposure for the seller is not statutory in the disclosure sense, it is common law fraud and concealment if they knew the risk and said nothing. That is a meaningful distinction when you are sitting on the buyer's side, because fraud and concealment claims have teeth in Arizona courts and do not require a written disclosure mandate to attach.

Where I would push right now is not on getting a disclosure document signed, it is on the note terms themselves. I closed a wrap in Tucson in early 2022, underlying was a conventional at 3.75, wrapped at 6.25, $340k purchase. What we negotiated was a clause that made the wrap seller responsible for costs of a cure or refinance if the lender accelerated within the first 36 months, capped at $8,500 in my deal. We also put a 90-day notice window and a right to assume the underlying before the seller could agree to acceleration. None of that is standard, the seller pushed back hard, but it shifted the exposure where it belonged. On a VA underlying the acceleration risk is genuinely higher because VA loans have stricter transfer language, so I would be asking for a longer cure window and a higher cap than I got. That is the negotiating lever, not the disclosure conversation.

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.