Since getting your application approved with the USCIS is a long procedure and may take even up to months for final approval, it is better that you take a professional help. As the USCIS lays down strict requirements for visa approval, an immigration lawyer is well-versed with the laws, eligibility criteria, requirements, and paperwork. Though the substantive documents will be the same as the initial B-1 visa requirements, however, an attorney will make sure to meet the time requirements of applying for a visa extension in order to avoid any issues with overstaying or becoming out of status.
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