Stephen P. Sonnenberg, Esq. has deep experience in understanding and resolving complex labor and employment disputes. Mr. Sonnenberg’s unique background, which allows him to understand both plaintiff and defendant concerns, comes from the practice of law, experience as a mediator, and prior experience as a psychotherapist. Mr. Sonnenberg is known for his attention to detail, thoughtful approach to emotion-laden disputes, and demeanor conducive to settlement.
Mr. Sonnenberg practiced labor and employment law at the highest levels for 25 years at Paul Hastings, a prominent AMLAW 100 firm, and achieved a prestigious ranking from Chambers USA, within the Labor & Employment band. Leadership roles at the firm included a term as Chair of the New York Employment Law Practice (2014-2017), Vice Chair of the Employment Law Department (International) (2003-2014) and Co-Chair of the Employment Law Department’s national wage and hour law practice (2005-2014). Resident for an equal amount of time in the firm’s Los Angeles and New York offices, Mr. Sonnenberg represented and advised clients in a wide range of employment disputes, including wage and hour class and collective actions, retaliation, wrongful discharge, restrictive covenant, discrimination and harassment lawsuits. He has also overseen and conducted privileged internal investigations in response to complaints of misconduct.
Mr. Sonnenberg has mediated numerous matters not only at JAMS but as a member of the Mediation Panels of the U.S. District Court, Southern and Eastern Districts of New York. He has taught employment law to members of the federal judiciary through the Federal Judicial Center, has provided employment law training and advice in a variety of settings, and is an adjunct faculty member at Cardozo Law School.
Before practicing law, Mr. Sonnenberg devoted himself to a 15-year career as a clinical social worker in Michigan and California. Mr. Sonnenberg worked in diverse psychiatric settings and community organizations, assisting individuals with a wide range of emotional, vocational and financial challenges, including facilitating the resolution of disputes with family members, employers and other third parties. Settings included psychiatric hospitals, a community mental health center, and the private practice of psychotherapy working with individuals, couples and families.