You should have started your own thread!!!! However, to answer your question, the answer is yes. If the one wanting to file as HOH has lived apart from their spouse for the last six months of a calendar year and paid more than 1/2 the cost of keeping up a home for themself and his/her child who lived with the taxpayer for more than six months during that calendar year.
six months means the child spent 183 or more nights with the taxpayer
there are other conditions to file as HOH
1) child can not be claimable solely because of multiple support agreement
2) taxpayer can not be a nonresident alien any time during the year
3) child can not be married and filing jointly with their spouse unless there is no tax liability and merely filing jointly to facilitate a refund of taxes withheld or paid estimates.
