A guardian must act in what the guardian reasonably believes to be the missing person's best interests (see section 18).

A guardian is to be treated as the missing person's agent with the authority conferred by the guardianship order and this Act.

Before taking a decision in relation to which it would be reasonable to expect the missing person to consult a particular person, the guardian must consult that person unless it is not reasonably practicable to do so.

A guardianship order does not affect any rights, powers or other interests of third parties in relation to the missing person's property or financial affairs.