What if my Visa expires while I am in the U.S.?

A: There is no problem with this as your I-94 dictates how much time you are allowed to spend in the U.S. on the indicated visa status. Note that this also assumes that you are validly maintaining your indicated visa status. If for example you are granted an I-94 as an H-1B visa holder but you decide not to actually work that the H-1B employer after your admission, then you are technically not maintaining your H-1B visa status and have become out of status. This may raise serious issues down the road if ignored.