The literature on immigration to the United States and its psychological effects upon immigrants and their children is reviewed. Guidelines for psychologist/attorney collaboration to support undocumented immigrants and their qualified relatives are addressed. Psychological evaluation can document rectification of prior negative behaviors, a causal relationship between abuse and psychological diagnosis in support of asylum, and/or a qualified relative's extreme psychological hardship if the noncitizen were to be removed or inadmissible to the United States. It provides support for cancellation of removal and waivers of inadmissibility/excludability. The continued well-being of deserving immigrants, their children, employers, and communities are supported. (Published Abstract)