Yoninah R. Orenstein, Esq.

Yoninah Orenstein started at Sadek and Cooper as an associate in 2017. Prior to joining the firm, Yoninah was an associate in the family law group of a large, Philadelphia-based firm. She also served as a judicial law clerk to the Honorable Elizabeth Jackson in the First Judicial District of Pennsylvania, Family Court Division.  

Yoninah is a family law specialist who works to make lives better for families all over Philadelphia. Not only does she provide solid guidance and a firm defense for her clients navigating custody, support, and property issues, but she is also active in the family law community. Yoninah is a member of the Philadelphia Bar, Family Law Section and serves on the Executive Committee of the Nicholas Cipriani Family Law Inn of Court, an organization which promotes education, ethics, and camaraderie among the members of the Philadelphia family law bench and bar.

Yoninah also contributes to the family law community through her publications, including her article “Tackling Emotionally Draining Issues” in TYL Magazine, Spring 2017. Volume 21, Issue 3, ‘Resilience,’ and “Applying the ‘Best Interests of the Child’ Standard in Shared Custody Arrangements,” which appeared in The Philadelphia Lawyer, Spring 2016, Volume 79, No. 1.

Yoninah earned her B.A. from McGill University and has three legal degrees including an LL.B. from the Université de Montréal, an LL. M. from Boston University School of Law, and a J.D. from Drexel University’s Thomas R. Kline School of Law.  Yoninah’s unique educational and legal service profile gives her perspective and acumen few attorneys can match. She is admitted to practice in Pennsylvania, New Jersey, and New York.

Yoninah’s family law experience helps divorcing spouses find hope during one of the most trying times of their lives. If you’d like Yoninah to take a look at your case, call 215-545-0008 to schedule your free consultation today.


  • J.D., Drexel University Thomas R. Kline School of Law
  • LL.M., Boston University School of Law
  • LL.B., Université de Montreal
  • B.A., McGill University

Professional Associations and Memberships

  • American Bar Association
  • Philadelphia Bar Association – Family Law Section
  • Nicholas Cipriani American Inn of Court, Executive Committee


  • Tackling Emotionally Draining Issues, TYL Magazine
  • Volume 21: 2016-2017, Issue 3: Resilience (Spring 2017

The Sadek & Cooper Difference

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  • Resolution Oriented Approach
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  • Honest and Prompt Communication
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Find Sadek & Cooper Near You

Center City Philadelphia, PA

Philadelphia Building 1315 Walnut Street
Suite 502
Philadelphia, Pennsylvania 19107
(215) 545-0008
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Northeast Philadelphia, PA

2375 Woodward Street
Suite 105
Philadelphia, Pennsylvania 19115
(215) 545-0009
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Bucks County, PA (Trevose)

5 Neshaminy Interplex
Suite 205
Trevose, Pennsylvania 19053
(215) 468-3328
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Cherry Hill, NJ

One Mall Drive
Suite 415
Cherry Hill, New Jersey 08002
(856) 890-9003
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Montgomery County, PA

630 Freedom Business Center Drive, #36
King of Prussia, Pennsylvania 19406
(610) 951-4655
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Delaware County, PA

Victoria Mills Business Center
1489 Baltimore Pike #218
Springfield, Pennsylvania 19064
(610) 432-3111
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Bucks County, PA (Levittown)

1609 Woodbourne Road
Suite 203B
Levittown, Pennsylvania
(215) 545-1055
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Moorestown, NJ

302 North Washington Avenue
Suite 101 West
Moorestown, New Jersey 08057
(856) 343-4068
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