Cohen Clair Lans Greifer & Simpson LLP

About Cohen Clair Lans Greifer & Simpson LLP

Cohen Clair Lans Greifer & Simpson LLP is a New York City law firm whose work centers on matrimonial and family law. The firm's website traces its origins to founding partners Robert Stephan Cohen and Bernard Clair, and notes that two predecessor practices combined in 2011. Its service pages describe divorce and separation work, child custody, prenuptial and postnuptial agreements, paternity proceedings, and acting as mediators or arbitrators in divorce and custody matters. A law directory listing also includes commercial litigation among the firm's areas.

The firm's office is at 919 Third Avenue, 34th Floor, in Manhattan, and its website lists this as its New York office. The website states that the firm routinely handles matters in Westchester County and also takes matters in Kings, Queens, Nassau and Suffolk counties and across the New York metropolitan area. Its attorneys also advise on cross-border family matters in other U.S. states and abroad. According to the website, Jad Greifer and Shannon Simpson were named co-Chairs of the firm in 2023.

Practice areas

Areas of work that Cohen Clair Lans Greifer & Simpson LLP describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.

Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Cohen Clair Lans Greifer & Simpson LLP.

Registered attorneys

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