There are numerous housing counseling agencies in Pennsylvania. The United States Department of Housing and Urban Development maintains a list of HUD-approved counselors. You can find that list here: http://www.hud.gov/offices/hsg/sfh/hcc/hcs.cfm?webListAction=search&searchstate=PA.
The Pennsylvania Housing Finance Agency maintains a similar list, which you can find here: http://www.phfa.org/applications/counseling_agencies.aspx.
HUD also maintains a web page of resources for people in Pennsylvania who may be facing foreclosure. You can find that page here: http://www.hud.gov/local/index.cfm?state=pa
PHFA has a similar page, which you can find here: http://www.phfa.org/consumers/homeowners/foreclosureprevention.aspx.