J.M. Rosen Cheesecake owner Jan Rosen is reportedly taking over Graziano’s in Petaluma, according to Petaluma Patch. Owner Graziano Perozzi plans to retire from the historic restaurant at 170 Petaluma Blvd. North. Rosen owned J.M. Rosen’s Waterfront Grill in the Golden Eagle Shopping Center and Rosen’s Eastside Grill, and was involved in a Petaluma nightclub. She sold her stake in all three after the death of her sister and business partner, Michelle, in 2004.