In a time of increased immigration enforcement, advocates must consider all possible forms of relief for clients facing deportation. U nonimmigrant status (also frequently referred to as a “U visa”) is commonly pursued as an affirmative immigration benefit for undocumented individuals, but it may also be a particularly important form of removal defense for certain lawful permanent residents (LPRs) facing deportation, likely on the basis of criminal convictions. This Practice Advisory provides an introduction to U nonimmigrant status and details its benefits for LPRs facing deportation, as well as the particular issues LPRs may face in seeking this form of protection.