The following persons may apply for the creation of a trust under this subchapter:
(1) the guardian of a ward;
(2) an attorney ad litem or guardian ad litem appointed to represent a ward or the ward's interests;
(3) a person interested in the welfare of an alleged incapacitated person who does not have a guardian;
(4) an attorney ad litem or guardian ad litem appointed to represent an alleged incapacitated person who does not have a guardian; or
(5) a person who has only a physical disability.