Timothy McOsker joined Mayer Brown in 2008. His practice focuses on governmental, regulatory and administrative law, particularly in the areas of land use, project entitlement and environmental compliance and related matters. Prior to joining the firm in 2008, Tim was the Chief of Staff to the Mayor of Los Angeles.
As the Chief of Staff, he was responsible, on behalf of the Mayor, for the implementation of policy and management of a city with over 35,000 employees, 40 departments and commissions and a budget of over 5 billion dollars. Before serving Mayor Hahn as Chief of Staff, Tim was the Chief Deputy City Attorney for the City of Los Angeles, managing the day-to-day operations of a law practice with more than 400 lawyers and clients as diverse as the Department of Water and Power, the Los Angeles World Airports, the Port of Los Angeles, the City Controller and the Los Angeles City Council.
Earlier in his career, Tim was in private practice as a partner and manager in a municipal law firm, during which he served as the City Attorney for the cities of Manhattan Beach, Downey, Lomita and Bellflower, as well as Special Counsel to a number of other jurisdictions in California. He also worked as a Deputy City Attorney of Long Beach.