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Advocates for NJ and PA
Workers & Their Families

Partners and Counsel of Costello, Mains & Silverman, LLC

Miriam S. Edelstein

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Miriam S. Edelstein is Counsel with Costello, Mains & Silverman, LLC and represents individuals in employment and civil rights litigation across New Jersey and in southeastern Pennsylvania. Drawing on more than a decade of prior legal practice representing companies and organizations across industries and sectors, ranging in size from small, start-ups to multinational, Fortune 20 corporations, Miriam's deep, substantive knowledge of employment and civil rights laws is rounded out by her practical knowledge of how employers and companies operate.

 Miriam has focused on employment and civil rights law since she first began practicing in 2006, with her experience running the gamut from harassment, discrimination and retaliation claims, including whistleblower claims, to both individual and collective/class wage and hour actions. She has practiced in courts and administrative agencies across New Jersey, New York and Pennsylvania and is admitted practice in all three of those states, as well as to practice before the United States District Courts for the District of New Jersey, Eastern District of Pennsylvania, Middle District of Pennsylvania, Western District of Pennsylvania, Southern District of New York and the United States Court of Appeals for the Third Circuit.

 Prior to joining Costello, Mains & Silverman, LLC in 2020, Miriam practiced management-side Labor & Employment law and provided Human Resources counseling, training and policy guidance on discrimination in both employment and places of public accommodation to clients at an AmLaw 100 firm as well as for a premier insurance carrier. During that time, Miriam also provided pro bono counsel for non-profit, charitable organizations, including Lambda Legal Defense & Education Fund, the nation's oldest and largest non-profit focused on the advancement of rights and protections for LGBTQ+ individuals. Miriam stepped away from private practice to join Lambda Legal full-time at its New York City headquarters as its Director of Strategic Partner Programs, working with the organization’s corporate sponsors to improve programs, policies and training to enhance their diversity, equity and inclusion (“DE&I”) efforts.

 Miriam is highly active in the New Jersey Association for Justice (“NJAJ”), where she serves as a member of the Board of Governors, a Co-Chair of the Diversity, Equity & Inclusion Committee, a member of the Education Committee and Women Trial Lawyers’ Caucus, and works on amicus curiae briefs for NJAJ on cases pending before the New Jersey Supreme Court. She regularly organizes and presents CLE seminars focusing on substantive and procedural legal topics in employment law, civil litigation as well as DE&I topics, and has authored several articles for legal and business publications on these topics. She is also a member of the National LGBTQ+ Bar Association and a former Commissioner of the American Bar Association's Sexual Orientation and Gender Identity Commission. She is most passionate about her outreach efforts to increase DE&I among legal professionals and policy-makers of the future by educating undergraduate students at Temple University about civics, workers' rights and civil rights.

 Miriam obtained her Juris Doctor Temple University’s Beasley School of Law in 2006. Prior to entering law school, Miriam worked as a Stage Manager and Director for U.S.-based theater companies and festivals after obtaining her Bachelor of Arts degree in Theater from Hampshire College.

Bar Admissions

  • Pennsylvania
  • New Jersey
  • U.S. District Court Eastern District of Pennsylvania
  • U.S. District Court District of New Jersey
  • U.S. Court of Appeals 3rd Circuit
  • U.S. District Court Middle District of Pennsylvania
  • New York
  • U.S. District Court Western District of Pennsylvania
  • U.S. District Court Southern District of New York

Education

  • Temple University James E. Beasley School of Law, Philadelphia, Pennsylvania
    • J.D. - 2006
    • Honors: Recipient of Law Faculty Scholarship
    • Honors: Recipient of Honorable Louis C. Bechtle Scholarship
    • Honors: Member of Temple’s National Trial Team
    • Honors: Received the Wapner, Newman, Wigrizer & Brecher Award for trial advocacy
    • Honors: Lena L. Hale Award
  • Hampshire College
    • B.A. - 2001
    • Major: Theater