Bill Belichick’s significant other, Linda Holliday , and Channel 7’s Janet Wu joined photographer Cheryl Richards at her party and raffle at the Park Plaza on Wednesday night. The event benefited Fairy DogParents, the Victim Rights Law Center, and Symphony Nova. Other guests included local actresses Erica McDermott and Melissa McMeekin — two of Mark Wahlberg’s sisters in “The Fighter” — who disclosed to pals that they’ve started their own production company with business partner Keri Anne Shea. The on-screen siblings, who hope to produce television and film, are calling their operation KupuKupu Productions.