About
Lynn Poster-Zimmerman is a respected family and matrimonial law attorney with more than 35 years of experience serving clients in Suffolk County. Throughout her career, she has earned a reputation for strong advocacy, clear guidance, and dependable representation during some of the most challenging moments families face. Her work at Lynn Poster-Zimmerman, PC focuses on helping clients navigate divorce, custody, support, and related family law matters with confidence and care.
Lynn began her academic path at the State University of New York, at Binghamton, where she earned her B.S. She continued her legal studies at Hofstra University School of Law and received her J.D. After completing her education, she was admitted to the New York State Bar in the Second Department and later admitted to practice in the U.S. District Court for both the Eastern and Southern Districts.
Lynn has held key positions in the Suffolk County Bar Association, including Secretary, Treasurer, President-Elect, and President. She has also served as Managing Director of both the Suffolk County Bar Association Charity Foundation and its Pro Bono Foundation. In addition, she has played an essential role on committees focused on mandated indigent defense services and on rules governing attorneys representing children. Her leadership extends to organizations such as the Suffolk County Women’s Bar Association and the Huntington Lawyers’ Club, where she has served as president.
Lynn Poster-Zimmerman demonstrates a deep commitment to helping families in times of crisis through her work. She provides clear communication, dependable guidance, and diligent representation for every client. With extensive courtroom experience and a strong history of community involvement, she remains a trusted advocate for individuals facing sensitive and complex family law matters.
Law Office Affiliations
- Founding Partner, Lynn Poster-Zimmerman, PC
- Member, New York State Bar Association
- President, Suffolk County Bar Association, 2019-2020
- President, Huntington Lawyer’s Club, 2002-2003
- Former Vice-President, Huntington Business and Professional Women’s Club
- Former Board of Directors, North Suffolk Mental Health Center
Licensed State
- New York
Education
- Hofstra University School of Law
Juris Doctor (JD) - State University of New York
Bachelor of Science (BS)
Awards & Badges



- Adoption
- Alimony
- Child Custody
- Child Support
- Divorce & Separation
- Guardianship
- Marriage And Prenuptials
- Mediation And Collaborative Law
- Military Divorce
- Paternity
- Uncontested Divorce
- Sexual Abuse



