San Francisco Sheriff Ross Mirkarimi's domestic abuse case took another turn Wednesday when it was revealed his lead attorney Bob Waggener would no longer be representing him in court.

KTVU learned the news from the attorney’s office Wednesday afternoon when trying to learn more information about Mirkarimi’s scheduled court appearance on Thursday.

Waggener’s office did not give a reason as to why he was not keeping Mirkarimi as a client.

Berkeley-based attorney Lidia Stiglich will now be handling Mirkarimi’s case. Stiglich was not available for comment.

Mirkarimi faces misdemeanor charges of domestic violence battery, child endangerment and dissuading a witness in connection with a New Year's Eve incident involving his wife, Eliana Lopez, during which their 2-year-old  son Theo was present.

He is set to appear in court on Thursday afternoon to seek the removal of a stay-away order preventing him from contacting his wife or son.  

Lopez has denied she has a complaint against Mirkarimi, but allegedly told neighbors about the incident and one of the neighbors, Ivory Madison, called police and also took a video of her conversation with Lopez.

The case is set to go to trial on Feb. 24.  

In addition, court documents obtained by reporters Wednesday indicate that prosecutors plan to call an ex-girlfriend of Mirkarimi to the witness stand during the trial.

A proposed witness list filed by prosecutors in the case includes Mirkarimi's ex-girlfriend who filed a police report last weekend and has given media interviews saying she dated him between 2007
and 2008. 

In the police report, the former girlfriend said Mirkarimi showed a "raging pitbull aggressiveness" and in one incident, he pinned her against a wall and shook her, bruising her upper arm. 

Other people on the prosecution's witness list include Lopez,  Madison, her husband and Callie Williams, another neighbor of the family's Webster Street residence, according to court documents.  

Prosecutors also plan on bringing in Nancy Lemon, a domestic  violence expert, as well as various police and district attorney investigators.  

Mirkarimi has said he will forgo pay during the days he is on trial, but stopped short of saying he will temporarily step down from his post as sheriff.  

He met on Tuesday with Mayor Ed Lee, who has expressed concerns over whether Mirkarimi can keep up with his duties as sheriff while dealing with the court case.  

Mirkarimi was sworn in as San Francisco's sheriff on Jan. 8 after serving for seven years on the city's Board of Supervisors.