Indiana Code Title 30. Trusts and Fiduciaries § 30-5-9-7

Sec. 7. If two (2) or more attorneys in fact are authorized to act on behalf of a principal, an attorney in fact who did not join in or consent to the action of one (1) or more of the co-attorneys in fact is not liable for the action.  Failure to object to an action is not consent to the action.