1. On part 1, if the mailing address I provided is the same as my physical address do I leave fields 9a-9h blank? Also, does the same apply for the beneficiary on part 2?
Leave 9a-9h blank if it is the same as your current address.
2. On part 1 regarding my employment history, I had a job for 6 months then left for another job and came back to the same job (my current employment). Do I put the start date of when I first started all the way until the present? Or do I write the previous time I worked at that job as its own thing?
Employment history should be chronological. If you left a job then returned 6 months later, it would be 2 entries, separated by the job you had in between.
3. On Part 2, 11e, it asks for "state", do I write the abbreviation for the state in that country (Mexico) or do I leave it blank since it is not in the U.S.
Enter the Mexican state name or abbreviation. It will be clear that it is not a US state if the selected country is Mexico.
4. Just for clarification, do I leave any field that does not apply to me blank or do I write "N/A"
N/A is not mandatory on this form, but it can be used when appropriate. For example, asking the "country of residence" for a deceased parent can be marked N/A. It is good practice to mark N/A on some questions to show that you did not overlook the question, however, filling in every blank is not required. For example, if you have no "Physical Address 2," you can put N/A in 11a, but no need to put it in 11b through 12b.