Ind. Code § 29-1-10-19
All acts of personal representatives whose authority shall subsequently be terminated because an estate found to be intestate is later found to be testate, or vice versa, because of a revocation of letters, or for any other cause, which acts were lawful when performed, according to the authority under which such personal representative was acting, shall be valid insofar as concerns the rights and liabilities of a purchaser, lessee, or encumbrancer, for value in good faith or a personal representative who has acted in good faith. No person delivering or transferring property to a personal representative or to any other person by authority of the letters issued to such personal representative or upon court order or pursuant to a will under which such a personal representative is acting, shall be held accountable by virtue of such acts performed prior to such termination of authority if such acts were lawful in accordance with the apparent authority of such letters, court order or will.
IC 29-1-10-19