How should i send a signed copy of a tax return form & how should I date it.

Paying for College
1

For fafsa verification, I checked, " I have attached a signed copy of our full 2017 federal tax return along with all scheules, and all W-2 forms". So we have a copy of it all but it’s not signed on the second page of our 1040. Do my parents just sign it and date it as of today? And I was alaso asked for a student non-filler statement. But I don’t any of these to create an account for the IRS data retrieval tool.
Credit Card OR

Student Loan OR

Mortgage or Home Equity Loan OR

Home Equity Line of Credit OR

Auto Loan
Do I just get a statement letter from the school or should everyone have atleast one of those listed.

2

Have your parents sign the form on the signature line & date it the day they sign it.

Have you ever filed a tax return? If not, these instructions are really good: http://ask.usc.edu/app/answers/detail/a_id/491/~/how-can-i-request-an-irs-verification-of-non-filing-letter%3F