Joshua B. Gruner
Education:
University of Delaware, B.A., Political Science, 1997, Hofstra University, J.D., 2000
Practice Areas:
Matrimonial Law; Family Law; Civil Litigation
Membership:
Nassau County and New York State Bar Associations
Admissions:
2001, New York
Reported Cases:
- Ehrman v. Ehrman, 67 A.D.3d 955, 889 NYS2d 652 (2nd Dept., 2009)
- MI.S. v. MA.S., New York Law Journal, March 17, 2014
- Anonymous 2017-1 vs. Anonymous 2017-2, 2018 NY Slip Op 28337 (October 23, 2018)
Certified in Collaborative Interdisciplinary Practice
Biography:
Joshua B. Gruner graduated with a Bachelor of Arts in Political Science from the University of Delaware in 1997 and received an Advanced Honors Certificate upon graduation. While at the University of Delaware, he founded the school’s Pre-Law Society.
Mr. Gruner attended Hofstra University School of Law from 1997-2000. He served as the Managing Editor of the Family & Conciliation Courts Review (now known as the Family Courts Review). Before graduating in 2000, Mr. Gruner participated in the NITA Trial Advocacy Program, assisted in the creation of a Family Law Clinic and interned for Nassau Supreme Court Justice Gabriel Kohn (in the matrimonial part). Upon graduating, he received the Distinguished Service to the School Award for all of his contributions to the school, particularly in the areas of family law.
Mr. Gruner was admitted to practice law in New York in January, 2001. After graduating, he immediately began working in various areas of law, including real estate, corporate litigation and all phases of matrimonial and family law. In 2005, he became an associate at the firm of Gassman & Keidel (predecessor to Gassman Baiamonte Gruner, PC) and since that time has focused exclusively in the fields of matrimonial and family law. Mr. Gruner became a partner of the firm on October 1, 2015.
He is currently an active member of the Nassau County and New York State Bar Associations. He serves as a Co-Chair of the Membership and Long-Range Planning Committees of the State Bar and is a member of the Nassau County Bar Association’s Judiciary Committee and WE CARE Advisory Board. Mr. Gruner has lectured for the New York State Bar Association as well as contributed to the preparation of CLE materials. He is the co-author of the NYSBA Practical Skills Handbook for Matrimonial Law. On numerous occasions he has assisted in teaching the Family Law with Skills course offered at Hofstra University School of Law. He completed the intensive week-long trial program offered by the prestigious National Family Law Trial Institute in Houston, Texas. Mr. Gruner has been recognized nationally and state-wide as a family law attorney by the American Institute of Family Law Attorneys (2014 & 2015, Under 40 Client Satisfaction Award), National Academy of Family Law Attorneys (2014 Top 10 Under 40), N.Y. “Super Lawyers” (2013 & 2014 Rising Star), and New York Metro’s Top Lawyers (Rising Star 2015) and “Ten Leaders” in Family Law Under the Age of 45. Mr. Gruner is also certified to represent clients in Collaborative Law after taking a comprehensive multi-disciplinary course in the collaborative law process.
In 2024, Mr. Gruner was installed as a Fellow of the American Academy of Matrimonial Lawyers, New York Chapter.
