Can I apply for a B visa with less than 30 days left on my tourist visa?

The individual is inquiring about the possibility of applying for a B visa while having only until the 26th of the month remaining on their tourist visa. Responses indicate that applying for a Non-B visa requires sufficient days left on the tourist visa (minimum 15 days) and that extensions can provide additional time. There are concerns about paperwork and the necessity of a work permit when transitioning to a B visa.