20.— (1) Subject to—

(a) the duties of a trustee, and

(b) any restrictions imposed by any statutory provision (including this Act) or the general law of trusts or by any instrument or court order relating to the land,

a trustee of land has the full power of an owner to convey or otherwise deal with it.

(2) The power of a trustee under subsection (1) includes the power to—

(a) permit a beneficiary to occupy or otherwise use the land on such terms as the trustee thinks fit,

(b) sell the land and to re-invest the proceeds, in whole or in part, in the purchase of land, whether or not situated in the State, for such occupation or use.