Mary AhrensVadasz
Counsel
Labor & Employment
mvadasz@seyfarth.com
With more than two decades of litigation experience, Mary’s practice focuses on partnering with employers to defend them in single-plaintiff and multi-party litigation and to help them to achieve their goals as effectively and efficiently as possible.
More About Mary
Mary is a trusted advisor to clients seeking practical, strategic solutions to address the complexities of employment law and achieve business-focused outcomes. Clients and colleagues value Mary’s judgment, preparation, and ability to communicate effectively with decision‑makers, witnesses, and opposing counsel. She is known for working closely with in‑house counsel and business leadership to align litigation strategy with business objectives, whether negotiating an early resolution or defending the employer at a hearing or trial. Mary has served a leading retail client since 2006, reflecting a sustained record of reliability, sound judgment and consistent results.
Mary regularly defends clients against claims of discrimination, retaliation, and hostile work environment in New York and New Jersey courts and before state and federal agencies, including the US Equal Employment Opportunity Commission, the New York State Division of Human Rights, and the New York City Commission of Human Rights, and the New Jersey Division on Civil Rights in complaints brough by both employees and customers. She also defends clients in New York-specific regulatory matters in administrative proceedings and in complex litigation, particularly wage-and-hour class and collective actions brought under the Fair Labor Standards Act and state law. In addition, Mary provides advice and counsel to clients on a wide range of employment-related topics.
Mary is committed to advancing her clients’ objectives through focused, efficient advocacy.
Mary regularly defends clients against claims of discrimination, retaliation, and hostile work environment in New York and New Jersey courts and before state and federal agencies, including the US Equal Employment Opportunity Commission, the New York State Division of Human Rights, and the New York City Commission of Human Rights, and the New Jersey Division on Civil Rights in complaints brough by both employees and customers. She also defends clients in New York-specific regulatory matters in administrative proceedings and in complex litigation, particularly wage-and-hour class and collective actions brought under the Fair Labor Standards Act and state law. In addition, Mary provides advice and counsel to clients on a wide range of employment-related topics.
Mary is committed to advancing her clients’ objectives through focused, efficient advocacy.
- JD, UCLA School of Law
- BA, University of North Carolina at Chapel Hill
- California
- District of Columbia
- New York
- US Court of Appeals, Second Circuit
- US Court of Appeals, Ninth Circuit
- US District Court, Central District of California
- US District Court, Northern District of California
- US District Court, Southern District of California
- US District Court, Eastern District of New York
- US District Court, Northern District of New York
- US District Court, Southern District of New York
- US District Court, Western District of New York
Related Services
Related Key Industries
Blogs
Related News & Insights
- Listed in New York Metro Super Lawyers for Employment & Labor (Thomson Reuters) (2013-2014, 2016-2018, 2023-2026)
- New York Peace Institute (training in Basic Mediation, Mediation Apprenticeship, Advanced Mediation, Divorce Mediation, Civil Court Mediation, and Apprenticeship)
"I'll review the answer and if I see anything wrong ... well, I won't, that's why [Mary] represents [us]—I won't see anything wrong." —Client feedback
"That [the client] is requesting you specifically is a strong validation of the work you have done for them." —Client feedback
“I could not leave without saying thank you for all your help and support these last couple of years. You made working [on these] matters easy . . . and that’s saying a lot!” —Client feedback
With more than two decades of litigation experience, Mary’s practice focuses on partnering with employers to defend them in single-plaintiff and multi-party litigation and to help them to achieve their goals as effectively and efficiently as possible.
More About Mary
Mary is a trusted advisor to clients seeking practical, strategic solutions to address the complexities of employment law and achieve business-focused outcomes. Clients and colleagues value Mary’s judgment, preparation, and ability to communicate effectively with decision‑makers, witnesses, and opposing counsel. She is known for working closely with in‑house counsel and business leadership to align litigation strategy with business objectives, whether negotiating an early resolution or defending the employer at a hearing or trial. Mary has served a leading retail client since 2006, reflecting a sustained record of reliability, sound judgment and consistent results.
Mary regularly defends clients against claims of discrimination, retaliation, and hostile work environment in New York and New Jersey courts and before state and federal agencies, including the US Equal Employment Opportunity Commission, the New York State Division of Human Rights, and the New York City Commission of Human Rights, and the New Jersey Division on Civil Rights in complaints brough by both employees and customers. She also defends clients in New York-specific regulatory matters in administrative proceedings and in complex litigation, particularly wage-and-hour class and collective actions brought under the Fair Labor Standards Act and state law. In addition, Mary provides advice and counsel to clients on a wide range of employment-related topics.
Mary is committed to advancing her clients’ objectives through focused, efficient advocacy.
Mary regularly defends clients against claims of discrimination, retaliation, and hostile work environment in New York and New Jersey courts and before state and federal agencies, including the US Equal Employment Opportunity Commission, the New York State Division of Human Rights, and the New York City Commission of Human Rights, and the New Jersey Division on Civil Rights in complaints brough by both employees and customers. She also defends clients in New York-specific regulatory matters in administrative proceedings and in complex litigation, particularly wage-and-hour class and collective actions brought under the Fair Labor Standards Act and state law. In addition, Mary provides advice and counsel to clients on a wide range of employment-related topics.
Mary is committed to advancing her clients’ objectives through focused, efficient advocacy.
- JD, UCLA School of Law
- BA, University of North Carolina at Chapel Hill
- California
- District of Columbia
- New York
- US Court of Appeals, Second Circuit
- US Court of Appeals, Ninth Circuit
- US District Court, Central District of California
- US District Court, Northern District of California
- US District Court, Southern District of California
- US District Court, Eastern District of New York
- US District Court, Northern District of New York
- US District Court, Southern District of New York
- US District Court, Western District of New York
Related Services
Related Key Industries
Blogs
Related News & Insights
- Listed in New York Metro Super Lawyers for Employment & Labor (Thomson Reuters) (2013-2014, 2016-2018, 2023-2026)
- New York Peace Institute (training in Basic Mediation, Mediation Apprenticeship, Advanced Mediation, Divorce Mediation, Civil Court Mediation, and Apprenticeship)
"I'll review the answer and if I see anything wrong ... well, I won't, that's why [Mary] represents [us]—I won't see anything wrong." —Client feedback
"That [the client] is requesting you specifically is a strong validation of the work you have done for them." —Client feedback
“I could not leave without saying thank you for all your help and support these last couple of years. You made working [on these] matters easy . . . and that’s saying a lot!” —Client feedback