Beverly Hills real estate broker Marisa Zanuck will join Bravo’s “The Real Housewives of Beverly Hills” next season, sources tell us. Zanuck, a mother of two who appeared on HGTV’s “Selling LA,” is married to Hollywood producer Dean Zanuck, son of producer Richard Zanuck and grandson of legendary Darryl F. Zanuck, a co-founder of 20th Century Fox. Marisa already has a connection to two of the reality show’s stars — she works at Hilton & Hyland, which is run by Rick Hilton, who is married to Kathy Hilton, the half-sister of “housewives” Kim and Kyle Richards. Zanuck declined to comment when we reached her via phone, and a Bravo rep didn’t get back to us.