(state (MD) law allows creditors filing claims before personal representative of estate appointed to file with register of wills in county of decedent's residence at death; decedent live in one county until taken to hospital in another county after an injury, and remained in hospital for 11 months until death; defendant filed claim for hospital bill of $206,343 with register of wills where hospital located and when will later admitted to probate in such county, personal representative denied defendant's claim as not being timely filed because decedent did not "reside" in such county at death; court allowed hospital's claim on basis that creditor must be able to easily determine residency and on basis of objective facts concerning residency; court noted that mere presence in county at time of death does not establish residency under state law, but it was highly unlikely that decedent would have ever been able to return home).