Ms. Guillergan has successfully filed petitions across all aspects of the immigration field, including alien of extraordinary ability and national interest waiver petitions for individuals in a variety of fields including business, science, arts and athletics. She has also represented many researchers who are seeking classification as an outstanding researcher. She has successfully represented individuals before the Immigration Court and has obtained asylee and refugee status for people from numerous countries.
Ms. Guillergan’s firm has a very high success and referral rate, generally indicating that its clients are satisfied with the service the firm provides. The firm is committed to offering personalized service and working with you to orchestrate the best legal strategy.
Ms. Guillergan is a member of the American Immigration Lawyers Association and has served on various committees (Local Government Liaison Committee, New York District Liaison Committee, New York Conference Committee, Handbook Associate Editor, Media Committee).
During the 2012 to 2014 term, Ms. Guillergan is the Chair of the Practice Management Committee for the American Immigration Lawyers Association's New York Chapter, the largest chapter in the national organization.
During the 2009 to 2014 term, she served on the AILA New York district Pro-Bono committee where the group organized matters such as the giving detained immigration inmates access to pro bono counsel and organizing various clinics throughout the New York city area to give access to free immigration help. In 2011, the group received the innovation in bar leaders award from the New York State Bar Association.
Ms. Guillergan is a member of the Board of Governors of the Korean American Lawyers Association of Greater New York since 2013. She is Chair of the Immigration Committee, Co-Chair of the Judiciary Committee, prior Gala Chair, and Northeast Regional Conference Co-Chair. She is also active in the group's annual law student scholarship committee and mentors a number of individuals.
Ms. Guillergan actively works to change law in her daily work as well as advocate for her clients. In 2016, she served as a New York State Electoral College member. She serves on a number of boards including the Queens Borough Public Library (appointed by NYC Council Speaker Melissa Mark-Viverito), Thalia Spanish Theatre, and Sunnyside Chamber of Commerce.
She is the recipient of a number of awards including the Korean American Lawyers Association Presidential Award for Public Service and the Top Women in Business from Schneps Communications. She has been selected to the Super Lawyers New York Metro 2014, 2015, 2016, 2017, and 2018. She has also been selected to the Top Women Attorneys in New York 2015, 2016, 2017, and 2018 list.
Ms. Guillergan is admitted as an attorney at law by the State of New York. She was born in Korea to a Korean mother and a Filipino father who was a U.S. citizen and came to the U.S. when she was 12 years old. She is married to a Dutch national.