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Michael Mosberg
Founding Partner at Mosberg Sharma Stambleck Gross LLP
Michael A. Mosberg is a founding partner of Mosberg Sharma Stambleck Gross LLP (MSSG), a boutique matrimonial and family law firm in New York.13 He is a national leader in family law, specializing in representing high net worth individuals in all areas of family and matrimonial law.24
Professional Experience
Mosberg practices in both New York and Connecticut, handling significant divorce cases nationwide.1 He strives for private and amicable resolutions but is also experienced in courtroom litigation for both financial and custody issues.4 Given that his cases often attract media attention, he works closely with clients and their advisors to address public relations challenges during the divorce process.14
Leadership and Recognition
Mosberg has held several leadership positions in legal organizations:
- Past Chair of the American Bar Association Family Law Section
- Fellow of the American Academy of Matrimonial Lawyers
- Fellow of the International Academy of Family Lawyers
- Former Chair of the Matrimonial Law Committee for the New York City Bar Association (2011-2014)
- Member of the New York State Matrimonial Practice Advisory and Rules Committee (for the past seven years)4
He has been recognized by:
- The Best Lawyers in America® (2015-2024)
- Chambers and Partners (2022-2023)
- Lawdragon 500 Leading Family Lawyers (2024)
- New York Super Lawyers (2011-2023)4
Contributions to Legal Education
Mosberg frequently lectures on family law and trial practice topics at various organizations, including the American Bar Association, New York State Bar Association, and American Academy of Matrimonial Lawyers (NY Chapter).14 He has authored several publications, including "Avoiding Deposition Pitfalls," "Depositions Gone Wrong: The Seven Deadly Sins," and "The Secret To Success: Using Witness Consultants to Prepare Your Client".4
Education and Early Career
Prior to private practice, Mosberg served as a law clerk to the Hon. Virginia M. Morgan of the United States District Court for Eastern District of Michigan.14

