Eli is a partner in Kamerman, Uncyk, Soniker & Klein, PC, a general practice law firm. He has experience in several areas of law, and heads the firm’s litigation practice (which also includes mediation, arbitration, family and divorce litigation and general commercial matters).  Eli has been appointed by federal and state courts to mediate complex commercial disputes, as well as family, custody and divorce disputes. His trial and appellate experience covers many courts at many levels, including trials and appeals, and many areas of law. Several of his cases have become often-cited precedents in other cases. He has given presentations and participated on panels in various venues, including "ADR in Flux- Mediation and the Law-Defining the Boundaries”; “Mediation of  End-of-Life and Long-Term Care Issues” before a joint conference of mediation organizations; Inter-active cooperation and teamwork training with the staff at the YWCA of White Plains and Greater Westchester; Inter-active cooperation and dispute resolution training with the staff of Goddard Riverside Community Center; and lectures on various subjects in Continuing Education programs for several organizations, including the New York City Bar Association, the Association for Conflict Resolution, the Association of Divorce Financial Planners, the New York State Divorce Mediation Council, and the Family and Divorce Mediation Council of Greater New York.  Eli was the publisher of the ACR-GNY's periodicals; and Editor and Publisher of NYSCDM's periodicals. Eli is also one of the founding members of the New York Chapter of the Association of Family and Community Courts (AFCC).

He has also written on subjects unrelated to conflict resolution and family law, including “Exempting Income of New York Non-Residents,” published in the New York Law Journal; and “International Aircraft Financing under the Uniform Commercial Code,” published in the New York University Law School Journal of International Law and Politics.