I use turbo tax to e file my taxes. This year I need to file form 8938 as well. will I be able to efile both the 1040 NR and the 8938 if I use turbotax?

If you are a US resident, you need to file Form 1040 with TurboTax.  TurboTax also handles your Form 8938 tax form. You mentioned 1040 NR which is a form for US nonresident tax payers.  If you are a US nonresident you cannot use TurboTax.  However, we have a partnership with Sprintax who can help you if you must file a 1040NR.

To get to the 8938 section in TurboTax (requires Deluxe or higher):

1. Open or continue your return if you're not already in it.
2. Search for 8938 and select the Jump to link at the top of the search results.
3. On the Foreign Financial Assets screen, select Yes, I have foreign financial assets.