(a) The commission shall determine from the facts whether reasonable cause exists to believe that a discriminatory housing practice has occurred or is about to occur.
(b) The commission shall make the determination under Subsection (a) not later than the 100th day after the date a complaint is filed unless:
(1) making the determination is impracticable; or
(2) the commission approves a conciliation agreement relating to the complaint.
(c) If within the period provided by Subsection (b) making the determination is impracticable, the commission shall give in writing to the complainant and the respondent the reasons for the delay.
(d) If the commission determines that reasonable cause exists to believe that a discriminatory housing practice has occurred or is about to occur, the commission shall, except as provided by Section 301.090, immediately issue a charge on behalf of the aggrieved person.