Immigration Attorney Services The Messersmith Law Firm is a full-service law firm, concentrating on immigration law. We have special expertise in work visas, family based visas, visa waivers, green cards through family and employment and asylum. We are well known for our zealous and creative advocacy on behalf of our clients. The Messersmith Law Firm assists large and small companies and institutions nationwide in complying with the complex immigration requirements of the and DOS to retain highly skilled workers in such fields as information technology, medical research, computer software, engineering, hospitality, art, martial arts and medicine. Immigration law is federal law which means that we are licensed to assist clients nationwide and even worldwide. The majority of immigration filings are done through the mail. This allows us to efficiently represent clients where they live and work. The Messersmith Law Firm employs state of the art technology in the practice of law which increases our speed and efficiency for the benefit of our clients.