Southeastern PA Investigations (SPI) is a Private Detective Agency, based in Thorndale, Chester County, PA

SPI Home Page Investigation Services Surveillance Services Infidelity & Divorce Cohabitation Services Subpoena Services About SPI Contact SPI SPI Cohabitation Investigations SPI’s Cohabitation Investigations can identify: Periods of time people are living together The complexity of their relationship Other unknown facts which may assist in the Family Court’s decision to reduce or possibly even eliminate your alimony payments (Most of SPI’s Cohabitation Investigations are conducted in Chester County, Pennsylvania) SPI Home Page   Investigation Services   Surveillance Services   Infidelity & Divorce Cohabitation Services   Subpoena Services   About SPI   Contact SPI Southeastern PA Investigations (SPI) - Chester County Private Investigation, Surveillance, Subpoena and Process Services.