B1 business visa requirements for the USA

1. You need to show the purpose of visiting the USA is linked to business purpose only2. You must ensure that your stay in the USA will be for a specific time period3. You need to show proof of funds to cover expenses in the United States4. You must provide evidence of compelling social and economic ties abroad5. You must provide proof of having a residence outside the US as well as other binding ties which will ensure your return to home at the end of the visit.The above-mentioned requirements of B-1 visa are also applicable for applying visa to the USA from London.For more details visit website - https://immigrationlawyerfl.com/business-working-visas/