M. Berger a fondé la section locale de l'American Immigration Association et en a été le premier président. Il siège à de nombreux conseils d'administration et organisations, dont l'Institut international, les Services familiaux juifs (JFS), le Bureau de l'éducation juive (BJE), le Centre communautaire juif (JCC), le Temple Shir Shalom, la Tonawanda Industrial Economic Corporation (TIEC) et la Fondation Wolk.

Mr. Berger has been in independent practice since 1980. Prior to opening his own practice, Mr. Berger worked in general practice for almost 10 years. Mr. Berger and his firm have received many recognitions as a Top Attorney in North America, New York Area’s Best Lawyers, The Best Lawyers in America, Buffalo Business first Who’s Who in Law. He is a member of the National Register’s Who’s Who in Professionals. Mr. Berger has focused his legal practice on Immigration and Nationality Law for over 40 years.

is a partner in the firm of Berger Berger & Sobieski, having been with the firm for a total of over eight years. Mr. Sobieski graduated in 2010 from the State University of New York at Buffalo School of Law. He was admitted to the practice of law in New York State in 2011. He has practiced with the firm in the area of Immigration Law for approximately a decade. Mr. Sobieski practices all aspects of Immigration Law, including both Family-based and Employment-based visa applications, as well as handling the bulk of the firm’s removal matters in the Federal Immigration Court.

En plus d'être membre en règle du Barreau de l'État de New York et du Barreau du comté d'Erie, M. Sobieski est également un membre actif de la section des jeunes avocats du Barreau de l'État de New York et de l'American Immigration Lawyers Association (AILA).

Mr. Sobieski has also been repeatedly named to Who’s Who Top Attorneys of North America, and as a Lawyer of Distinction, for the last few years. He also spoke as a featured presenter at the Upstate NY AILA Chapter's 2021 Fall Conference. He served regularly as a Volunteer / Pro Bono Attorney for the Volunteer Lawyers Project, on behalf of tenants appearing in front of Buffalo City Court, for eviction matters, since June of 2016.

Par ailleurs, M. Sobieski a donné diverses conférences en droit de l'immigration et de la nationalité à l'Université d'État de Buffalo, dans l'État de New York, et a été évaluateur bénévole lors de la première épreuve du Concours national de procès de février 2011, au Tribunal municipal de Buffalo, dans l'État de New York. Né et élevé à Buffalo, il y a vécu presque toute sa vie et est fier d'y vivre.