(a) A majority of the judges of the courts that are designated as juvenile courts in Harris County may determine that one or more full-time or part-time masters are needed to serve those courts.
(b) The judges shall issue an order reflecting that determination and specifying the number of masters needed.

(c) Subject to the determination of need and the approval of the commissioners court of Harris County, each judge may appoint one or more masters to serve the judge’s court.
(d) Judges may act together to appoint a master to serve their courts.