She teaches in the Immigration Justice Clinic. Previously, she was a Skadden Fellow at the ACLU Immigrants' Rights Project, where she focused on impact litigation related to immigration detention and border enforcement, and an Arthur Liman Public Interest Fellow at the Cardozo Immigration Justice Clinic, where she worked on issues at the intersection of criminal and immigration law and helped establish the nation’s first system of institutionally-provided counsel for detained noncitizens facing deportation. While at the ACLU, Lindsay taught an immigration law field clinic as an adjunct professor at Cardozo.