So what are my options? I forgot to remove the dependent when filing and the audit is asking for paperwork I do not have.

Unfortunately, every IRS case is different and I really cannot say what will happen.  However, if you end up owing, you can ask for a payment plan to relieve the financial pressure this could cause.

What exactly would I have to pay back ?

I do not know, I am just giving you an option if you do.  Maybe you will not, just giving you an option in event you do.

Did you ever reslove this issue? We have the same problem. If so could u help me out

No I never resolved the problem. I want to amend and just remove what's questioned. This year is crap

@drewspurrier21 - if being audited, follow the directions in the audit letter.  Any questions should be directed to the phone number on the letter or write your question and mail to the address on the letter referring to the case number.

"... the audit is asking for paperwork I do not have."  If you do not have documentation - for example the child is not a dependent - then respond to the IRS letter stating you accept their findings. Send in the amount proposed.
If there is not an amount specified, wait for the next letter which will have a final amount due.