file as single and don't check you can be claimed as a dependent. based on your statement mom did not support you which is a requirement for her to claim yo either as either a qualifying child or qualifying relative will have to paper file becuase mom claimed you. at some point the IRS will send you and mom a letter asking to amend. you should not. if mom doesn't. the IRS sends a seconfd letter asking for proof you are properly claimed. the letter will probaly contain info that can be submitted. Keep good proof that you supported yourself.
