The body of his late wife, Monica Beresford-Redman, was discovered in April in Cancun. Bruce Beresford-Redman -- a former "Survivor" producer and "Pimp My Ride" creator -- is barred from leaving Mexico and his passport has been confiscated.
Carla Burgos, the woman's sister, is also seeking guardianship of the kids.
A trial date is expected to be set June 17.