Adjustment of Status - I-485

Hi everyone, so i received my RFE for i485. I did not submit form i864 and they are asking for it with and i quote from the letter "...provide copies of the petitioner/sponsor's most recent Federal tax returns and all supporting tax documents (W-2's, 1099s, Form 2555, and tax schedules.)" My wife filed through Turbotax and we were able to print out last years tax return and we kept her w-2s and everything she filed for that year. She makes over the 125% federal poverty level and my income is also included on that. This is what we have so far...please share your thoughts.

-Cover letter
-Signed and completed I864
-Sponsors 2015 Federal tax return with W-2s
-paystubs(new job with higher income)

Intended immigrants Proof of Work Authorization (DACA since 2012)
2015 federal tax return with documents
Paystubs (to show income and work 2 jobs)

Should i get a complete tax return from the IRS site or is the one from Turbo tax fine? Thank you guys for any help.