ARTICLE 52 Questions as to Membership of the Assembly 1. Any question that may arise whether any person is an elected member of the Assembly or whether any seat on the Assembly is vacant shall be determined by the institution of the Partner State that determines questions of the election of members of the National Assembly responsible for the election in question. 2. The National Assembly of the Partner States shall notify the Speaker of the Assembly of every determination made under paragraph 1 of this Article. ARTICLE 53 Speaker of the Assembly 1. The Speaker of the Assembly shall be elected on rotational basis by the elected members of the Assembly from among themselves to serve for a period of five years. 2. The Speaker of the Assembly shall vacate his or her office: (a) upon the expiry of the period for which he or she was elected; (b) if he or she delivers his or her resignation in writing to the elected members; or (c) if he or she ceases to be qualified for election as Speaker of the Assembly. 3. The Speaker of the Assembly may be removed from office by a resolution supported by not less than two thirds majority of the elected members for inability to perform the functions of his or her office, whether arising from infirmity of mind or body or for misconduct. ARTICLE 54 Invitation of Persons to Assist the Assembly 1. The Speaker of the Assembly, may invite any person to attend the Assembly, notwithstanding that he or she is not a member of the Assembly, if in 41