<prompt> Human: So I had a child with my now ex-gf back in July of 2012. We were both living together, however I paid 90 of the bills. I claimed my daughter on my 2012 taxes as my ex-gf told me too at the time, and she stated since I paid for our daughter so much I get the money. Things went sour and now she is trying to get an attorney to make me amend my 2012 taxes as of 2 weeks ago. She cannot do that can she? Plus I supported 90 of my daughters stuff since she was born.  <response>: now she is trying to get an attorney to make me amend my 2012 taxes as of 2 weeks ago.I dont see how she can do that. She submitted and signed her own tax return not claiming yourher daughter as a dependent, and you submitted yours with your daughter as your dependent. Just because the situation between you two went sour, does not change the facts, and she is just acting like a vindictive bitch. You should probably consult with a lawyer, since you need to be protected when it comes to visitation rightschild support etc., and she seems to be out to get you. 