To a large extent, 'The Offer' is based on true occurrences. It takes elements from actual experiences and fictionalizes them to create an engaging storyline. However, some details might have been dramatized for entertainment value.
I'm not entirely sure without more specific information about this particular 'offer series'. But generally, in a series based on a true story, the main characters would be the key individuals involved in the real - life events that inspired the show.
The show 'The Offer' is not a completely accurate account of real events. It blends fact and fiction to create an entertaining narrative. Some aspects might be based on truth, but others are fictionalized for dramatic effect.