Thank you for your interest in applying at Allegheny County. The following information will assist you through the application process.CocoDoc collected lots of free employment verification letter for visa sponsorship for our users. A sponsor must be a. When submitting Forms I864 or I134, an employment verification letter can help show that the beneficiary has adequate financial support. (APPLICANT'S STARTING DATE OF WORKING IN THE COMPANY) until present. File Form I-765 along with evidence of your admission (for example, copies of your Form I-94, passport, or other travel document) and your K visa. 3. Please fill out the form below and click Submit to submit your application for consideration. "Yes, I need employer sponsorship to work within the United States. County of Allegheny sponsored H-1B visa and employment based green card: history, salary, contact information, occupation, visa job location and reviews.