A San Francisco Immigration Attorney details the many ways that individuals, families and businesses can successfully immigrate to the United States. Legal issues detailed include B-1 Business Visitor Visas, E-2 Treaty Investor Visas, H-1B Specialty Worker Visas, L-1 Intra-company Transferee Visa s, Non-immigrant Visa Consular Appointments For Third Country Nationals, O-1 Visa For Persons Of Extraordinary Ability and citizenship requirements.