(i) by the county commissioners;

(ii) in Baltimore City, by the Mayor with the advice and consent of the City Council;

(iii) in any county that has a county executive, by the county executive with the advice and consent of the county council; or

(iv) if 2 or more counties have agreed to establish a multicounty review board, jointly by the appropriate officials of the counties served by the board.

(2) Of the 11 members:

(i) 1 shall be a professional representative of a local department;

(ii) 1. in counties other than St. Mary’s County or Washington County:

A. 1 shall be a physician’s assistant, nurse practitioner, or physician who is not a psychiatrist; and

B. 1 shall be a psychiatrist; and

2. in St. Mary’s County and Washington County:

A. 1 shall be a physician’s assistant, nurse practitioner, or physician who is not a psychiatrist; and

B. 1 shall be a psychiatrist or psychologist;

(iii) 1 shall be a representative of a local commission on aging;

(iv) 1 shall be a professional representative of a local nonprofit social service organization;

(v) 1 shall be a lawyer;

(vi) 2 shall be lay individuals;

(vii) 1 shall be a registered nurse;

(viii) 1 shall be a professional in the field of disabilities; and

(ix) 1 shall be a person with a physical disability.

(b) (1) Except as provided in paragraph (3) of this subsection, the term of a member is 3 years.

(2) The terms of members are staggered as required by the terms provided for members of the review board on October 1, 1984.

(3) In Charles County, the term of a member is 4 years.

(4) At the end of a term, a member continues to serve until a successor is appointed and qualifies.

(5) A member who is appointed after a term has begun serves only for the rest of the term and until a successor is appointed and qualifies.