ADVANCE GUARD SERVICES LLC.-BROOKLYN ...THIS COMPANY IS A SCAM... STAY A WAY DONT GO THERE PEOPLE-A BUNCH OF SCAMERS... THEY MAKE PEOPLE PAY FOR THE 8 AND 16 HOURS CERTIFICATE AND PROMISES JOBS WITH THIS CERTIFICATES-BUT THAT IT !!! WHEN YOU ACTUALLY GO TO THEIR OFFICE FOR THE JOB PLACEMENT, YOU WASTE TIME THERE, BECAUSE THE PERSON THAT SUPPOSED TO GIVE YO THE JOB PLACEMENT HAPPENS TO HAVE AN EMERGENCY AND LEAVE THE OFFICE OR CALLED THAT HIS WIFE IS SICK--BS BS BS BS BS... THEY SEND PEOPLE TO JOB AGENCYES THAT HAVE NO... read full review »