Hello,

I was working in USA on L1B visa from May 2008 till August 2009 in Texas. Since August 2009, I resigned from the company and started my higher education(Masters) from a university in California. I also changed my status from L1B to F1.
From August 2009 till now I haven't worked anywhere. Also I have paid university fees on my own, and have received 1098-T from the university.

I have few queries about my tax status:

a) What is my tax status? Is it Resident, Dual or Non-Resident? Last year I filed taxes for year 2008 as Resident Alien?

b) Also second related query is can I use 1098-T to get Lifetime or Tuition credit?

Thanks in advance!