According to a press release put out on PR Newswire by her attorney, Dr. Arlene Ackerman has filed suit against the San Francisco Unified School District in San Francisco Superior Court.

She is seeking damages in excess of $172,000 for nonpayment of salary and other compensation, saying that the district breached a written agreement. Dr. Ackerman resigned from her post in June 2006--a resignation forced by the board of education in accordance with a so-called "compatibility clause."