Clinical Services Unlimited LLC purchased the 4,250 square foot office building at 6013-6015 Staples Mill Road in Henrico for $707,500. Johnny Rockets, a diner chain, has leased 2,400 square feet at the Hancock Village Shopping Center in Chesterfield.Marty’s Grill leased 4,000 square feet at Rutland Commons at Atlee and Chamberlayne roads in Hanover.