No, the type of dependents you can claim do not include girlfriends.
Yes
NO.
Yes if she has dependents.
how many dependents do i claim filing as head of household
No, the type of dependents you can claim do not include girlfriends.
Yes
NO.
You cannot claim any dependents if you can legitimately be claimed as a dependent by someone else. So if your mother legitimately claimed you, you cannot claim your son. But you should check the rules for claiming a dependent to see if your mother could also have claimed your son.
No
Yes you can.
Yes if she has dependents.
how many dependents do i claim filing as head of household
You claim Single filing status with no dependents if you meet certain conditions. One, you've never been married, and you don't have any dependents. Two, you're legally separated under a decree of divorce or separate maintenance, and you don't have any dependents. Three, you're widowed, you haven't remarried, and you have no dependents.
If you have nine, yes; but don't be surprised by an audit.
As many as legally qualify.
You can claim as many as you actually have, according to the rules on what is considered a dependent.