For insurance in Pennsylvania I recommend Chubb. Their customer service is very good.

You should consider getting an appraisal and filing an appeal with the county on the property taxes to get them reduced.

If you do not believe the house will appreciate much over the next several years, you may be better off selling it (perhaps to the next door relative, or perhaps through a realtor) after a bunch of cosmetic fixes (e.g., trim the landscaping, paint interior neutral colors). If the house is not worth much and is in a depressed neighborhood, you won't be able to recover the money you invest in fixing it.