Before entering the advocacy field, Foscarinis was a law clerk at the
U.S. Court of Appeals for the Second Circuit from 1981 to 1982. She was a litigation associate from 1982 to 1985. While at the firm she took a pro bono case representing a class of homeless families who had been denied emergency shelter in a federal court case. she has written extensively on homelessness and on legal rights of homeless people, for both general and legal audiences in U.S. and international publications. Since 2018, she has been on the adjunct faculty of Columbia Law School, co-teaching a seminar on law and policy of homelessness. She has received numerous awards and been profiled in publications including the New York Times Sunday Magazine, the Los Angeles Times, the Washingtonian, and the English language edition of Kathimerini. In 2021, she was a Practitioner Resident at the Rockefeller Foundation Center in Bellagio, Italy. She is the author of And Housing for All: The Fight to End Homelessness in America, published June 3, 2025 by Prometheus Books. She has been selected as a 2025-2026 U.S. Fulbright Scholar to Brazil. == References ==