I was wondering if you guys can answer following questions- 1) does a person who writes "welcome letter" or who sponsors DV winner has to be a US citizen or GC holder? 2) can a TPS holder(previously F1 status; OPT EAD just expired and GC through work few months away (AOS applied), thus applied TPS to continue working) write welcome letter? 3) does the DV winner, entering US for first time, need to go to person writing the welcome letter or can he go to other states? People with experience, please help me. Thanks in advance.