Tiffany Hardrick and Keith Sanders are accused of ending the school's contract with a bus company without board approval.
The school plans to add two more grades next year and boost enrollment from 181 to 240.
Former board president blamed for agreeing to a vague deal; current board says it won't try to get the money back.
More than twice as much of their income, according to the Institute on Taxation and Economic Policy.
The incident led to Gisele Schexnider being banned from the campus of the charter school.
Rising 10th graders could soon be applying to Milestone SABIS Academy.
The only trouble is the school's leaders aren't sure they'll have that grade next year.
The immediate aim is professional development, but the union also wants to lay the groundwork to organize the schools.
Gov. Bobby Jindal has pointed to Florida and Texas as models for his plan to cut income taxes and rely more on sales taxes. But those states rely heavily on two taxes he dislikes: business and property taxes. Would Louisiana rely on a "one-and-a-half-legged stool"?
The business of transition is underway at Crocker Arts and Technology as the school prepares to hand over leadership to New Orleans College Prep on June 30.
Board president Grisela Jackson told the school's board that she had received a month-by-month to do list from the Recovery School District, and is in regular contact with Brandie Burris, manager of school performance, who will be assisting with the transition.