My mother has a B1/B2 visa. She is returning to Nepal after a 5-month stay in the USA with me. She wants to come back again after two months. Can she come? What would be the procedure?
There’s a very good chance that if your mother comes back to the USA after just two months following a five month stay, that the immigration control officer will conclude that she has immigration intent and that she shouldn’t be using a B1/B2 non-immigrant visa but instead should return to Nepal and apply for a family immigration visa (which may take years to process).
I assume you want to avoid this.
It’s hard to know exactly what metric the American immigration officers use for flagging B1 entries but one general rule of thumb is to spend more time in your home country than outside of it.
So if she was in the USA for five months, she should try to spend at least five months if not more in Nepal before trying for another reentry.