A trustee company may –

(a) prepare and lodge taxation returns;

(b) if so authorized by a will or other instrument creating a trust or by an instrument signed by all persons beneficially entitled to the income of any property or business, manage that property or carry on that business in accordance with any terms or conditions specified in that will or other instrument; and

(c) hold property as a custodian trustee unless it is prohibited from doing so by virtue of, or it is inconsistent with, any trusts to which that property is subject.