O.J. Simpson was surrounded by family in the final days before his death, and that includes all of his living children -- yes, even the 2 youngest he had with Nicole Brown Simpson.
Sources with direct knowledge tell TMZ ... everyone who came to visit O.J. at his home in the days before he passed had to sign NDAs for his privacy -- that went for friends, family and even medical personnel who were coming into contact with him while he was under hospice care.