The news of the organisation's new hire comes amid reports of the duke and duchess' recent deal with Netflix in which they will be filming an intimate "at home docuseries". The couple have faced backlash since the announcement with many saying the docuseries will be a royal version of Keeping Up with the Kardashians.
Meanwhile, Dickie Arbiter, the former press spokesman for the Queen and Prince Charles reportedly told Palace Confidential the couple's decision to allow the filming of a Netflix docuseries contradicts their "desire for privacy".
The Daily Mail reported Arbiter said, "It smacks of desperation".
"It's a bit rich, two people who left the UK, walked out of the royal family, because they wanted privacy, they've done nothing else but put themselves up front and a week doesn't go by when there isn't some sort of statement coming out of their PR people.
"The Kardashians do a reality series, the Sussexes do a docuseries. For any good fly-on-the-wall documentary, you need some tension, you need drama, otherwise it's just boring."