Sorry to hear about the job front. With that situation, buying a house is academic - you need a job to get a mortgage.
I would recommend that you consider using this as a time to make some sweeping changes that can have long-term benefits. If you move out of Philly and do NOT work in Philly, then you avoid the 4% city income tax. You'll still have 3.03% state tax but that's reasonable (this is 6.37 in NJ for most people!).
So ... I'd recommend that you consider finding work North of Philly in Lower Bucks, and when your lease runs out, move to a town up there without the 1% earned income tax (like Trevose, Bristol Borough, etc).