A co-habitation surveillance investigation involves licensed private investigators monitoring and documenting whether an ex-spouse receiving alimony is living with a romantic partner in a manner that qualifies as cohabitation under NC law. This includes video evidence of overnight stays, shared routines, public interactions, and financial ties. Private Eyes Inc. focuses on gathering court-admissible proof to support alimony modification cases, helping payers reduce or eliminate ongoing spousal support obligations legally and discreetly.