First preference visas are for priority workers with extraordinary ability, outstanding professors or researchers, and multinational managers/executives. People claiming to fit in any one of these three categories must meet certain criteria that is set forth by the national government. You must have proof that your works have been published by relevant entities, accolades and awards that you have won, and evidence that you are considered an authority in your field.
Permanent EB1 work visas will only be given to people that can prove their skills with sufficient accurate documentation. People looking to work for a new company must show that they have received a job offer accordingly. Those that want to work for the United States branch of their current company must have proof that they have been employed for enough time abroad with executive or management responsibilities.
The EB-1 Priority Workers Visa can be obtained in one of two ways, depending on your situation. Anyone that is a professor, researcher, manager, or executive must have their employer complete the Form I-140 Petition for Alien Worker and send it to the USCIS. If you are claiming to be someone of extraordinary ability, you must fill out and submit that form on your own.