This means the county where the Decedent lived and considered their primary home address before they died. Traditionally, establishing a new domicile is easy.Wherever you consider home, the place you intend to indefinitely stay, is your domicile. Domicile is defined in the Surrogate's Court Procedure Act (SCPA) Section 103(15) as a person's principal fixed and permanent home. Domicile is a technical legal term. Domicile is a legal term that refers to which state you are an actual resident of. "State of legal residence" (SLR) and "domicile" mean the same thing, namely your true, fixed, and permanent abode.