The National Immigration Project of the National Lawyers Guild Inc. helps immigrant communities by providing legal assistance and technical support. They promote equality in immigration law, the criminal justice system, and public policies related to immigration. They advocate for enforcement and detention issues, provide legal support and training, and develop community resources. They also train public defenders on immigration consequences, provide assistance on deportation defense and custody issues, and offer information and referrals to families of detained immigrants. Additionally, they defend and advance the rights of marginalized individuals within the immigration and criminal legal systems through advocacy and litigation.