Manhattan Mediators was created by Ana-Lisa Gertner and Hal Gessner to help couples and families resolve their conflicts. We have formed a unique partnership that approaches mediation as a team. Using our skills and experience, we help you untangle the complex issues in your dispute, so that a lasting solution can be agreed upon.

We have co-mediated many cases and our clients have found that the integration of our individual expertise and diverse backgrounds provided them with a successful and rewarding experience.

Ana-Lisa Gertner

Ana-Lisa Gertner is an experienced Family and Divorce Mediator with a Life Coaching Certificate from NYU.  After spending more than 20 years as a freelance consultant and raising a family, she now practices mediation and coaching full time. Ana-Lisa believes each person and situation is unique, and deserves thoughtful attention so that a customized solution can be found.

Ana-Lisa has a BA from the American College in London, and a Masters of Marketing Communications from the University of Westminster in London.

Hal Gessner

Hal Gessner is a certified mediator specializing in the areas of Divorce, Family, and Marital Mediation.

He also is a mentor and mediator for the New York Peace Institute resolving disputes in community, housing, family, business, Civil Court and Criminal Court cases. In addition, he coaches NYPD officers in using mediation techniques to de-escalate conflicts.

Professional Affiliations

  • American Arbitration Association
  • Association for Conflict Resolution
  • The Center for Family Reconciliation
  • National Association For Community Mediators (NAFCM)
  • Labor and Employment Relations Association (LERA)
  • New York Peace Institute
  • Directors Guild of America


Mediation Certifications and Training

  • American Arbitration Association
  • Cornell University ILR School, Scheinman Institute on Conflict Resolution
  • The Center for Mediation and Training
  • Elder Decisions, Adult Family Mediation
  • Neumann Mediation Services
  • New York Peace Institute
  • New York State Bar Association Commercial Mediation



For a free consultation contact: