Can H1 visa holder apply for B1

Hi, I am on H1 visa and working currently. Is there any possibility to apply for B1 visa and how much time it will take to get a B1 visa and what are the requirements. Thanks Roomie…

Do you want to apply for B-1 while continuing to stay in US? In that case, you will have to file COS from H-1 to B-1. You will have to show that you are maintaining legal status (i.e. H-1 payslips) and the purpose of moving to B-1 along w/ documents supporting that purpose.

Processing can take 2-3 months, but if RFE is issued then it will take longer.