Any sale or encumbrance to a conservator, his spouse, agent or attorney, or any corporation or trust in which he has a substantial beneficial interest, or any transaction which is affected by a substantial conflict of interest is voidable unless the transaction is approved by the court after notice to interested persons and others as directed by the court.
Sale, encumbrance or transaction involving conflict of interest; voidable; exceptions
A.R.S. § 14-5422 — under Protection of Property of Persons Under Disability and Minors.
A.R.S. § 14-5422