As for claiming your GF----if she lived with you the WHOLE tax year and had less than $4300 of income (not counting Social Security) you may be able to claim your GF as a "qualifying relative." You would get the $500 credit for other dependents for claiming your GF.
Your own child may be claimed as a qualifying child.
IRS interview to help determine who can be claimed:
https://www.irs.gov/help/ita/who-can-i-claim-as-a-dependent
https://ttlc.intuit.com/questions/3113432-who-can-i-claim-as-my-dependent
https://ttlc.intuit.com/questions/4505693-why-can-t-i-claim-the-credit-for-other-dependents-family-t...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
