Texas Government Code - GOV'T § 54A.306. Term of Appointment;  Termination

(a) An associate judge appointed under this subchapter serves for a term of four years from the date the associate judge is appointed and qualifies for office.

(b) The appointment of an associate judge for a term does not affect the at-will employment status of the associate judge.  An appointing presiding judge of an administrative judicial region or the successor presiding judge of the region may terminate the associate judge's appointment at any time.