Estate Law Questions? Ask an Estate Lawyer.
DearCustomer- Since he died intestate you will have to apply to be the administrator at the probate court in your county of residence. Under the laws of intestate succession you will inherit his entire estate unless he has children and then you would have to share with them. If the bills exceed the assets there would be nothing to do but to pay the bills since there would be nothing to distribute to the heirs.
Most probate courts will have the necessary forms available for you to be able to open an estate if there are a very small amount of assets and liabilities involved.