NEW ORLEANS — Michael Sherman, executive counsel to Mayor Mitch Landrieu, will leave his post May 24, the city announced on Friday.

Sherman has served as executive counsel since October 2011, but will move on to private practice. He also will continue to serve as an adjunct faculty member at Tulane University, the city said in a news release.

As executive counsel to the mayor, Sherman served as a legal adviser and handled federal issues.

Before that, he served as director of intergovernmental affairs and counsel to the mayor. In that role, Sherman managed the administration’s relationship with the City Council, city boards and various commissions, the state Legislature and U.S. Congress.

Sherman will be replaced by Erica Beck, chief deputy city attorney for in-house matters.

Beck, who joined the city attorney’s office in 2010, has supervised and managed lawyers and staff on matters related to in-house contracting and procurement, public records and advised departments, boards and commissions, the release said.

Beck also was part of the team that negotiated the New Orleans Police Department consent decree. She also sits on the selection committee for the NOPD consent decree monitor.

Meanwhile, Suchitra Satpathi, who has handled state legislative affairs for the city and Landrieu administration since September 2010, will take on the additional responsibilities of overseeing federal affairs and managing appointments to city boards and commissions.

Friday’s announcement came the same day City Attorney Richard Cortizas left his job at City Hall.

Cortizas, who worked for the city the past three years, resigned his position to “pursue family business interests” and practice private law with Jones Walker, the city said when it announced his departure.

Sharonda Williams, who serves as chief deputy city attorney for litigation, is the new city attorney.