IMHO. the best place to find free legal advice for Pennsylvania Family law issues (child support, divorce, emancipation, child custody, alimony) are internet forums. Here you will receive advice from people that have been there done that and sometimes even lawyers who participate in the forums. Here are a few links to forums which I regularly participate in:
http://www.divorcesource.com/
http://www1.divorcenet.com/bbs/postlist.php?Cat=0&Board=pa&page=0
http://www.laborlawtalk.com
http://community.lawyers.com/messageboards/board.asp?channelId=17&mbId=115
