Assuming that you have GC, this seems like a straightforward case to me. Do what will help you make the most money (considering you are not getting any benefits/paid vacation time now). How much more will they pay you as a independent contractor (LLC)? Will the difference be significant even after paying taxes (as an independent contractor they won't withheld any taxes, you will have to make quarterly estimated payments; remember you will have to pay both employer and employee portion of FICA taxes). There is no way to answer your question without knowing the dollar amounts of your current and future pay.