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Experienced and dedicated, the Law Office of Katia Teirstein PLLC provides counsel in family and business immigration matters. 




“Choosing an immigration attorney is an important decision. Always seek advice from a licensed attorney and one that has a proven track record in the immigration field. Since 2012, the Law Office of Katia Teirstein has developed a successful immigration practice with truly tailored assistance. However, I believe what sets my office apart is the relationships we cultivate. We provide thoughtful and caring guidance, built on a foundation of respect and dedication to our clients’ objectives. I continue to be motivated by my clients’ entrepreneurial spirit, many who uproot their entire lives to pursue their personal or professional dreams in the United States. I inject this passion and love for the profession into all that I do.


Thank you for considering the Law Office of Katia Teirstein with such an significant decision. To my clients, I am sincerely grateful for all of you, as you have enabled me to build a law firm that I am truly proud to serve.” 


-- Katia Teirstein 

Founding Partner, Attorney at Law


Immigration Attorney located in Manhattan


Katia Leiselsen Immigration Attorney
Jasmine Leiselsen, Immigration paralegal at Law Office of Katia Teirstein PLLC

Katia Teirstein 

Founding Partner, Attorney at Law


Originally from the Pacific Northwest, Katia holds a Bachelor of Arts in History from the University of Washington, where she graduated with multiple Dean’s List awards and a Certificate of High Scholarship. She received her Juris Doctor from Yeshiva University’s Benjamin N. Cardozo School of Law in New York City, where she concentrated in Constitutional Law and was named a Cardozo Public Interest Fellow. During her legal studies, she clerked at the General Counsel Office of the U.S. Department of the Navy and the New York City Office of Emergency Management, as well as the Innocence Project, where she assisted the wrongfully convicted in appeals for DNA testing.


Katia is a member of the New York State Bar since 2011, as well as an active member of the American Immigration Lawyers Association (“AILA”), the New York State Bar Association, and the French-American Chamber of Commerce. She is also a member of the highly selective New York Metro “Super Lawyers” and has been named a Rising Star within the practice area of Immigration 2015 - 2017. 


Katia studied at a lycée in North-Eastern France as a teenager, where she learned to speak French. In her free time, she enjoys traveling, snowboarding, cheering on her beloved New York Yankees, and exploring New York City. An avid runner, most mornings you’ll find her running with her two dogs in Central Park or on the trails of Westchester County. She runs the New York City Marathon each November and she recently ran the 2017 Boston Marathon for charity. 

Jasmine Leiselsen



If it wasn't obvious from her photo, Jasmine Leiselsen is the identical twin sister of attorney Katia Teirstein. After a career in the hospitality and snowboarding industry, Jasmine became a Paralegal nearly three years ago. She is a graduate of the University of Washington in Seattle, where she earned a Bachelors Degree with a major in Comparative History of Ideas with a focus in English. Jasmine’s research thesis on the construction of gender identity within unorganized sport was chosen for publication by the Comparative History of Ideas program in 2006. 


Jasmine splits her time between New York City, Seattle, and the Cascade mountains, where she is an avid snowboarder and hiker. She enjoys traveling and adventure, having backpacked throughout Europe and Asia. She and her fiancé, Chad, completed a six-week snowboarding road trip throughout the Canadian and U.S. Rocky Mountains during the winter of 2016. Some of her favorite travel memories include motorcycling through the mountains along the Burma-Thailand border, swimming with black tip reef sharks in Ko Toa, Thailand, drinking wine while watching the sunset in Tuscany, Italy, and eating escargot at her favorite restaurant in the Montmartre district of Paris. Her favorite things to do in New York include enjoying a latte while watching the holiday ice-skaters outside our office in Bryant Park, patio lunches and sangria during the summer in Little Italy, people-watching over Halal sandwiches in Midtown, and (much to her sister’s dismay) rooting on the Seattle Mariners when they play the Yankees in the Bronx.


“Dedicated, highly involved and skilled lawyer. Katia is the best! I got almost 5 different visas (with different types), she always has been on top of everything, providing outstanding results."

- Benjamin / E-2 Investor Visa

- Laurel / K-1 Visa

“She helped my husband get his K-1 visa so that we could move to Seattle for his dream job. Katia is warm and helpful, patiently answering any and all questions we had."

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