The actress' attorney, Shawn Chapman Holley, resigned from the case shortly after releasing a statement on Thursday calling a judge's 90-day jail sentence for Lohan "harsh and unfair."

No reason for her withdrawal from the high-profile case was given, and her replacement has not been announced. A representative for the seasoned defense attorney, who fought to keep the "Mean Girls" star out of jail during a daylong hearing on Tuesday, said her earlier remarks about Lohan's sentence remained valid.

"Ms. Lohan and I are extremely disappointed in the sentence handed down by judge (Marsha) Revel," Holley's statement had read. "We believe that the penalty is far harsher than what others would have received under similar circumstances.

"The reality is that Ms. Lohan, like most defendants, had to balance work commitments with court requirements. To be punished so severely for doing so, particularly in light of the fact that she substantially complied with each of her probationary conditions, is harsh and unfair," it said.