(a) To be eligible for appointment under this subchapter, a person must be a citizen of the United States, have resided in this state for the two years preceding the date of appointment, and be:
(1) eligible for assignment under Section 74.054, Government Code, because the person is named on the list of retired and former judges maintained by the presiding judge of the administrative region under Section 74.055, Government Code; or
(2) licensed to practice law in this state and have been a practicing lawyer in this state, or a judge of a court in this state who is not otherwise eligible under Subdivision (1), for the four years preceding the date of appointment.
(b) An associate judge appointed under this subchapter shall during the term of appointment reside in the administrative judicial region, or a county adjacent to the region, in which the court to which the associate judge is appointed is located. An associate judge appointed to serve in two or more administrative judicial regions may reside anywhere in the regions.