My L1B visa expired in Dec 2012. My company had applied for an extension in Oct 2012, when I was working for X client under Y role in Z project. We received an RFE in Nov 2012 end, when I had moved to A client under B role in C project. Now I want to understand, how should I proceed in making my RFE support documents (which are related to my role, specialized skil, project and client) as my project has changed. There is no way that I can get a client letter frm my previous client as I have already moved to a new project. Please advise.