A fee simple which, by virtue of the Lands Clauses Acts, . . . or any similar statute, is liable to be divested, is for the purposes of this Act a fee simple absolute, and remains liable to be divested as if this Act had not been passed and a fee simple subject to a legal or equitable right of entry or re-entry is for the purposes of this Act a fee simple absolute.
A fee simple vested in a corporation which is liable to determine by reason of the dissolution of the corporation is, for the purposes of this Act, a fee simple absolute.
Where any such power for disposing of or creating a legal estate is exercisable by a person who is not the estate owner, the power shall, when practicable, be exercised in the name and on behalf of the estate owner.